What Is the Cost of Phasing Out Fossil Fuels in Latin America?

Posted on December 12, 2023 by admin

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Colombian President Gustavo Petro presented his environmental plans at COP28 in Dubai and added his country to the small group of nations that support the negotiation of a binding treaty to prevent the proliferation of fossil fuels, despite his country being an oil producer. CREDIT: Emilio Godoy / IPS

DUBAI, Dec 12 2023 (IPS) – One of the most heated debates at the annual climate summit coming to a conclusion in this United Arab Emirates city revolved around the phrasing of the final declaration, regarding the “phase-out” or “phase-down” of fossil fuels within a given time frame.

This is an essential calculation on the decommissioning of refineries, pipelines, power plants and other infrastructure that, in some cases, have been in operation for years, as discussed at the 28th Conference of the Parties (COP28) to the United Nations Framework Convention on Climate Change (UNFCCC).

Experts who talked to IPS at the summit agreed on the magnitude of the bill, which for some Latin American nations could be unaffordable.

“Financial support will be needed. There must be a differentiated approach, differentiated timing, and developed countries must come up with the resources.” — Fernanda Carvalho

Fernanda Carvalho of Brazil, global leader for Energy and Climate Policy at the non-governmental World Wildlife Fund (WWF), referred to the amount without specifying a figure.

“Financial support will be needed. There must be a differentiated approach, differentiated timing, and developed countries must come up with the resources,” the expert, who was present at COP28, held at Expo City on the outskirts of Dubai, told IPS.

COP28 engaged in an acrimonious debate between phase-out and phase-down, with a definite date, of oil, gas and coal, which has already anticipated a disappointing end in Dubai, that in line with the tradition at these summits extended its negotiations one more day, to conclude on Wednesday, Dec. 13.

The “phase-down” concept has been in the climate-energy jargon for years, but it really took off at the 2021 COP26 in the Scottish city of Glasgow, whose Climate Pact alludes to the reduction of coal still being produced and the elimination of inefficient fossil fuel subsidies.

Throughout the climate summits since 1995, developing countries have insisted on differentiated measures for them, in accordance with their own situation, the need for financing from developed nations and the transfer of technology, especially energy alternatives.

Enrique Maurtúa of Argentina, senior diplomacy advisor to the Independent Global Stocktake (iGST) – an umbrella data and advocacy initiative – said they hoped for a political signal to determine regulations or market measures regarding a phase-down or phase-out.

“If a target date is not set, there is no signal. If you set a phase-out for 2050, that is a pathway for the transition. With a deadline, the market can react. And then each country must evaluate its specific context,” the expert told IPS in the COP28 Green Zone, which hosted civil society organizations at the summit.

Available scientific knowledge indicates that the majority of proven hydrocarbon reserves must remain unextracted by 2030 to keep the planetary temperature rise below 2 degrees Celsius, the threshold agreed in the 2015 Paris Climate Change Agreement to avoid massive disasters.

On Sunday, Dec. 10 the non-governmental Climate Action Network (CAN) delivered at COP28 a dishonorable mention to the United States for its role in Israel’s carnage in Gaza, in the traditional Fossil of the Day award for “doing the most to achieve the least” in terms of progress on climate change at the summits. CREDIT: Emilio Godoy / IPS

Failed attempts

In the Latin American region there are unsuccessful precedents of fossil fuel phase-outs.

In 2007, the then president of Ecuador, Rafael Correa (2007-2017), launched the Yasuní-Ishpingo Tambococha Tiputini initiative, which sought the care of the Yasuní National Park in the Ecuadorian Amazon rainforest, in exchange for funds from governments, foundations, companies and individuals of about 3.6 billion dollars by 2024 to leave the oil in the ground.

The aim was to leave 846 million barrels of oil untouched underground. But a special fund created by Ecuador and the United Nations Environment Fund only raised 13 million dollars, according to the Ecuadorian government. So Correa decided to cancel the initiative in 2013, at a time when renewable energies had not yet really taken off.

In a referendum held in August, Ecuadorians decided to halt oil extraction in a block in Yasuní that would provide 57,000 barrels per day in 2022 – the same result sought by Correa, but without foreign funds.

The result of the referendum is to be implemented within a year, although the position of the government of the current president, banana tycoon Daniel Noboa, who took office on Nov. 23, is still unclear.

Meanwhile, in Colombia, President Gustavo Petro has put the brakes on new oil and coal exploration contracts, a promise from his 2022 election campaign.

In addition, the president announced on Dec. 2 in Dubai that his country was joining nine other nations that are promoting the formal initiation of the negotiation of a Fossil Fuel Non-Proliferation Treaty.

Colombia will thus become the first Latin American nation and the largest oil and coal producer to join the initiative that first emerged in 2015 when several Pacific Island leaders and NGOs raised the urgent need for an international mechanism to phase out fossil fuels.

For the undertaking of a just energy transition to cleaner fuels, Petro estimates an initial bill of 14 billion dollars, to come from governments of the developed North, multilateral organizations and international funds.

The latest summit of hope for the climate kicked off on Nov. 30 in this Arab city under the slogan “Unite. Act. Deliver” – the least successful in the history of COPs since the first one, held in Berlin in 1995.

The hopes included commitments and voluntary declarations on renewable energy and energy efficiency; agriculture, food and climate; health and climate; climate finance; refrigeration; and just transitions with a gender focus.

In addition, there were financial pledges of some 86 billion dollars, without specifying whether it is all new money, to be allocated to these issues.

Like many countries, the host of COP28, the United Arab Emirates, has had a pavilion in the so-called Green Zone, which hosts non-governmental organizations, companies and other institutions. The Emirati government bet a lot on the climate summit to deliver results, but without directly targeting the fossil fuels on which its economy depends. CREDIT: Emilio Godoy / IPS

Billions

Given the production and exploration plans of the main hydrocarbon producing countries in the region, the magnitude of the challenge in the medium and long term is enormous.

In October, Brazil, the largest economy in the region and the 11th largest in the world, extracted 3.543 billion barrels of oil and 152 million cubic meters (m3) of gas per day.

This represented approximately two percent of the domestic economy that month.

Mexico, the region’s second largest economy, extracted 1.64 million barrels and 4.971 billion m3 of gas per day in October, equivalent to 52 million dollars in revenues.

Meanwhile, Colombia produced 780,487 barrels of oil in the first eight months of 2023 and 1,568 cubic feet per day of gas, equivalent to 12 percent of public revenues.

“We have to think about decarbonization measures. We want Latin America to be a clean energy powerhouse,” said Carvalho.

As of September, Brazil’s state-owned oil giant Petrobras was working on obtaining 9.571 billion barrels of oil equivalent, according to the Global Oil & Gas Exit List produced by the German non-governmental organization Urgewald.

This represents an excess of 94 percent above the limit set by the 2015 Paris Agreement to keep global warming below two degrees Celsius.

Meanwhile, Mexico’s state-owned oil company Pemex is producing 1.444 billion barrels of oil equivalent, 56 percent above the threshold set by the Paris Agreement.

Finally, the public company Ecopetrol, mostly owned by the Colombian state, is working to obtain 447 million barrels, 98 percent above the Paris Agreement limit, according to Urgewald.

In addition, the cost of action against the climate crisis is far from affordable for any Latin American nation.

For example, Mexico estimated that the implementation of 35 measures, including in the power, gas and oil generation sector, would cost 137 billion dollars in 2030, but the benefits would total 295 billion dollars.

But Maurtúa says the budget question is only relative. “There is a lot of public money with which many things can be done,” complemented by international resources, he argued.

Innovative Family Farm in Cuba Uses Mix of Clean Energies

Posted on October 2, 2023 by admin

Active Citizens, Civil Society, Climate Action, Development & Aid, Editors’ Choice, Energy, Environment, Food and Agriculture, Headlines, Innovation, Integration and Development Brazilian-style, Latin America & the Caribbean, Projects, Regional Categories, Water & Sanitation

Energy

Artist and farmer Chavely Casimiro and her daughter Leah Amanda Díaz feed one of the biodigesters at Finca del Medio, a farm in central Cuba. The biodigester produces about seven meters of biogas per day, enough energy for cooking, baking and dehydrating food. CREDIT: Jorge Luis Baños / IPS

TAGUASCO, Cuba, Oct 2 2023 (IPS) – Combining technologies and innovations to take advantage of solar, wind, hydro and biomass potential has made the Finca del Medio farm an example in Cuba in the use of clean energies, which are the basis of its agroecological and environmental sanitation practices.

Renewable energy sources are used in many everyday processes such as electricity generation, lighting, water supply, irrigation and water heating, as well as in cooking, dehydrating, drying, baking and refrigeration of foodstuffs.

“We started out with windmills on artesian wells and hydraulic rams to pump water. That gave us an awareness of the amount of energy we needed and of how to expand its use,” said farmer José Antonio Casimiro, 65, owner of this agroecological family farm located in the center of this long Caribbean island nation.

“More incentives, better policies and financial support are needed so that farming families have sufficient energy for their work and can improve the comfort of their homes and quality of life.” — José Antonio Casimiro

The farmer expressed his appreciation of the help of his son, 41, also named Antonio Casimiro, in the installation of the two mills at Finca del Medio, during the days in which IPS visited the farm and shared in activities with the family.

“There was no one to assemble or repair them. We both had to study a great deal, and we learned to do a lot of construction things as we went along and perfected the techniques,” said Casimiro junior, referring to the equipment that is now inactive, but is capable of extracting some 4,000 liters of water daily from the water table.

When rainfall is abundant and the volume of the 55,000-cubic-meter-capacity reservoir rises, the hydraulic ram comes to life. The device diverts about 20,000 liters of water to a 45,000-liter tank, 400 meters away and 18 meters above the level of the reservoir.

“The only energy the rams use is the water pressure itself. Placing it on the highest part of the land makes it easier to use the slope for gravity irrigation, or to fill the animals’ water troughs,” explained Chavely Casimiro, 28, the youngest daughter of José Antonio and Mileidy Rodríguez, also 65.

An artist who also inherited the family’s “farming gene”, Chavely highlighted some twenty innovations made by her father to the hydraulic ram, in order to optimize water collection.

Other inventions speed up the assembly and disassembly of the windmills for maintenance, or in the event of tropical cyclones.

“We have been replacing the water supply with solar panels, which are more efficient. They can be removed faster (than the windmill blades) if a hurricane is coming. You can incorporate batteries and store the energy,” said Casimiro.

“Let’s say a windmill costs about 2,000 dollars. With that amount you can buy four 350-watt panels. That would be more than a kilowatt hour (kWh) of power. You buy a couple of batteries for 250 dollars each, and with that amount of kWh you can pump the equivalent of the water of about 10 windmills,” he said.

But the farmer said the windmills are more important than the energy they generate. “It would be nice if every farm had at least one windmill. For me it is very symbolic to see them pumping up water,” he said.

Lorenzo Díaz, the husband of Chavely Casimiro, uses a solar oven to cook food. In the background can be seen a windmill and a solar heater, other technologies that take advantage of the potential for renewable energies on the Finca del Medio farm in central Cuba. CREDIT: Jorge Luis Baños / IPS

Innovations

Located in the municipality of Taguasco, in the central province of Sancti Spíritus, some 350 kilometers east of Havana, Finca del Medio follows a family farm model including permaculture, agroecology and agricultural production based on the use of clean energy.

In 1993, Casimiro and Rodríguez with their children Leidy and José Antonio – a year later, Chavely was born – decided to settle on the 13-hectare farm of their paternal grandparents, with the aim of reversing its deterioration and soil erosion and installing perimeter fences.

The erosion of the land was due to the fact that in the past the farm was dedicated to the cultivation of tobacco, which depleted the soil, and later it had fallen into abandonment, as well as the house.

The older daughter is the only one who does not live and work on the farm, although she does spend time there, and a total of ten family members live there, including four grandchildren. All the adults either work on the farm or help out with different tasks.

With the help of technological innovations adapted to the local ecosystem, and empirical and scientific knowledge, the family has become self-sufficient in rice, beans, tubers, vegetables, milk, eggs, honey, meat, fish and more than 30 varieties of fruit. The only basic foodstuffs not produced on the farm are sugar and salt.

They sell all surplus production, including cow’s milk, for which they have specific contracts, and they are also promoting agrotourism, for which they are making further improvements to the facilities.

At Finca del Medio, a system of channels and ditches allows the infiltration of rainwater, reduces erosion of the topsoil and conserves as much water as possible for subsequent irrigation.

These innovations also benefit neighboring communities by mitigating flooding and replenishing the water table, which has brought water back to formerly dry wells.

The construction of the house is also an offshoot of technological solutions to the scarcity of resources such as steel, which led to the design of dome-shaped roofs made of mud bricks and cement.

The design aids in rainwater harvesting, improves hurricane protection, and boosts ventilation, creating cooler spaces, which reduces the need for air conditioning equipment and bolsters savings.

Along with food production, the new generations and members of the Casimiro-Rodriguez family engage in educational activities to raise awareness about good agricultural and environmental practices.

Students from nearby schools come to the farm to learn about these practices, as well as specialists in agroecology and people from different parts of the world, interested in sharing the experience. Meanwhile, several members of the family have traveled abroad to give workshops on agroecology and permaculture.

Farmers José Antonio Casimiro and his son of the same name talk in the mechanical workshop at their Finca del Medio farm. Both have come up with innovations for the use of windmills, the hydraulic ram and biodigesters, as well as agricultural tools. CREDIT: Jorge Luis Baños / IPS

Farmers José Antonio Casimiro (R) and his son of the same name talk in the mechanical workshop at their Finca del Medio farm. Both have come up with innovations for the use of windmills, the hydraulic ram and biodigesters, as well as agricultural tools. CREDIT: Jorge Luis Baños / IPS

Solar and biogas potential

On one of the side roofs of the house are 28 photovoltaic panels that provide about eight kWh, connected to batteries. The stored energy covers the household’s needs during power outages that affect the island due to fuel shortages and breakdowns and problems in maintenance of its aging thermoelectric plants.

In addition, the household has three solar water heaters with a capacity of 380 liters.

Next to the kitchen, two fixed-dome biodigesters produce another renewable fuel, biogas, composed mainly of methane and carbon dioxide from the anaerobic decomposition of animal manure, crop waste and “even sewage from the house, which we channel so that the waste does not contaminate the environment,” said Casimiro.

Due to the current shortage of manure as the number of cows has been reduced, only one of the biodigesters is now operational, producing about seven meters of biogas per day, sufficient for cooking, baking and dehydration of foodstuffs.

The innovative family devised a mechanism to extract – without emptying the pond of water or stopping biogas production – from the bottom the solids used as biofertilizers, as well as hundreds of liters of effluent for fertigation (a combination of organic fertilizers and water) of the crops, by gravity.

The installation of the biodigesters, the solar panels and one of the solar heaters was supported by the Swiss Agency for Development and Cooperation (Cosude) and the Indio Hatuey Experimental Station of Pastures and Forages through its Biomass-Cuba project, Casimiro said.

He also expressed gratitude for the link with other scientific institutions such as the Integrated Center for Appropriate Technologies, based in the central province of Camagüey, which is focused on offering solutions to the needs of water supply and environmental sanitation, and played an essential role in the installation of the hydraulic ram.

The farmer said the farm produces the equivalent of about 20 kWh from the combination of renewable energies, and if only conventional electricity were used, the cost would be around 83 dollars a month.

Lorenzo Díaz feeds firewood into an innovative stove that allows the Finca del Medio farm to efficiently cook food, dehydrate or dry fruits and spices, heat water and preserve meat, among other functions. CREDIT: Jorge Luis Baños / IPS

Efficient stove

In the large, functional kitchen, the stove covered with white tiles and a chimney has been remodeled 16 times to make it more efficient and turn it into another source of pride at the farm.

Fueled by firewood, coconut shells and other waste, “the stove makes it possible to cook food, dehydrate fruits and spices, heat water and preserve meat, among other tasks,” Rodríguez told IPS as she listed some of the advantages of this other offshoot of the family’s ingenuity that helps her as a skilled cook and pastry chef.

She pointed out that by extracting all the smoke, “the design makes better use of the heat, which will be used in a sauna” being built next to the kitchen, for the enjoyment of the family and potential tourists.

Casimiro is in favor of incorporating clean energy into agricultural processes, but he said that “more incentives, better policies and financial support are needed so that farming families have sufficient energy for their work and can improve the comfort of their homes and quality of life.”

Since 2014, Cuba has had a policy for the development of renewable energy sources and their efficient use.

A substantial modification of the national energy mix, which is highly dependent on the import of fossil fuels and hit by cyclical energy deficits, is a matter of national security

However, regulations with certain customs exemptions and other incentives to increase the production of solar, wind, biomass and hydroelectric energies in this Caribbean island nation still seem insufficient in view of the high prices of these technologies, the domestic economic crisis and the meager purchasing power of most Cuban families.

Clean sources account for only five percent of the island’s electricity generation, a scenario that the government wants to radically transform, with an ambitious goal of a 37 percent proportion by 2030, which is increasingly difficult to achieve.

Source

Treated Wastewater Is a Growing Source of Irrigation in Chile’s Arid North

Posted on September 18, 2023 by admin

Active Citizens, Civil Society, Climate Action, Climate Change, Combating Desertification and Drought, Development & Aid, Economy & Trade, Editors’ Choice, Environment, Featured, Food and Agriculture, Green Economy, Headlines, Integration and Development Brazilian-style, Latin America & the Caribbean, Projects, Regional Categories, Sustainable Development Goals, Water & Sanitation

Water & Sanitation

Alfalfa farmer Dionisio Antiquera stands in front of one of the wastewater treatment ponds at the modernized plant in Cerrillos de Tamaya, a rural community in the Coquimbo region of northern Chile. The thousands of liters captured from the sewers are converted into clear liquid ready for reuse in local small-scale agriculture. CREDIT : Orlando Milesi / IPS

COQUIMBO, Chile , Sep 18 2023 (IPS) – The reuse of treated wastewater in vulnerable rural areas of Chile’s arid north is emerging as a new resource for the inhabitants of this long, narrow South American country.

The Coquimbo region, just south of the Atacama Desert, one of the driest in the world, is suffering from a severe drought that has lasted 15 years.

According to data from the Meteorological Directorate, a regional station located in the Andes Mountains measured 30.3 millimeters (mm) of rain per square meter this year as of Sept. 10, compared to 213 mm in all of 2022.

“Rural localities today are already reusing wastewater or gray water. This is going to happen, with or without us, with or without a law. The need for water is so great that the communities are accepting the use of treated wastewater.” — Gerardo Díaz

At another station, in the coastal area, during the same period in 2023, rainfall stood at 10.5 mm compared to the usual level of 83.2 mm.

Faced with this persistent level of drought, vulnerable rural localities in Coquimbo, mostly dedicated to small-scale agriculture, are emerging as a new example of solutions that can be replicated in the country to alleviate water shortages.

The aim is to not waste the water that runs down the drains but to accumulate it in tanks, treat it and then use it to irrigate everything from alfalfa fields to native plants and trees in parks and streets in the localities involved. It is a response to drought and the expansion of the desert.

“We were able to implement five wastewater treatment projects and reuse 9.5 liters per second, which is, according to a comparative value, the consumption of 2,700 people for a year or the water used to irrigate 60 hectares of olive trees,” said Gerardo Díaz, sustainability manager of the non-governmental Fundación Chile.

These five projects, promoted by the Fundación Chile as part of its Water Scenarios 2030 initiative, are financed by the regional government of Coquimbo, which contributed the equivalent of 312,000 dollars. Of this total, 73 percent is dedicated to enabling reuse systems, for which plants in need of upgrading but not reconstruction have been selected.

The common objective of these projects, which together benefit some 6,500 people, is the reuse of wastewater for productive purposes, the replacement of drinking water or the recharge of aquifers.

Díaz told IPS that the amount of reuse obtained is significant because previously this water was discharged into a stream, canal or river where it was perhaps captured downstream.

The Huatulame treatment plant in the rural municipality of Monte Patria in northern Chile is being completely repaired with the support of the local municipality. Waterproof plastic sheeting and rocks have been installed, and in the final stage sawdust and earthworms will be incorporated before receiving wastewater from local households for reuse. CREDIT: Orlando Milesi / IPS

A successful pilot experience

In Coquimbo, which has a regional population of some 780,000 people, there are 71 water treatment plants, most of which use activated sludge and almost all of which are linked to the Rural Drinking Water Program (APR) of the state Hydraulic Works Directorate.

Activated sludge systems are biological wastewater treatment processes using microorganisms, which are very sensitive in their operation and maintenance and rural sectors do not have the capacity to maintain them.

“Most of these treatment plants are not operating or are operating inefficiently,” Diaz acknowledged.

But one of the plants, once reconditioned, has served as a model for others since 2018. Its creation allowed Dionisio Antiquera, a 52-year-old agricultural technician, to save his alfalfa crop.

“We have had a water deficit for years. This recycled water really helps us grow our crops on our eight hectares of land,” he said in the middle of his alfalfa field in Cerrillos de Tamaya, one of the Coquimbo municipalities that IPS toured for several days to observe five wastewater reuse projects.

Raúl Ángel Flores stands in his nursery, where the plants and trees are irrigated with recycled water from the Punta Azul project in the town of Villa Puclaro, in Chile’s Coquimbo region. All profits from the town’s wastewater treatment are reinvested in its maintenance. CREDIT: Orlando Milesi / IPS

He explained that using just reused water he was able to produce six normal alfalfa harvests per year with a yield per hectare of 100 25-kg bales.

“That’s 4500 to 4800 bales in the annual production season,” he said proudly.

These bales are easily sold in the region because they are cheaper than those of other farmers.

The water he uses comes from an APR plant that has 1065 users, 650 of whom provide water, including Antiquera.

On one side of his alfalfa field is a plant that accumulates the sludge that is dehydrated in pools and drying courts, and on the other side, the water is chlorinated and runs into another pond in its natural state.

“This water works well for alfalfa. It is hard water that has about 1400 parts per million of salt. Then it goes through a reverse osmosis process that removes the salt and the water is suitable for human consumption,” the farmer explained.

In Chile, treated wastewater is not considered fresh water or water that can be used directly by people, and its reuse is only indirect.

Antiquera sold half a hectare to the government to install the plant and in exchange uses the water obtained and contributes 20 percent to the local APR.

He recently extended his alfalfa field to another seven hectares, thanks to his success with treated water.

Deysy Cortés, president of a rural drinking water system in Huatulame, stands in front of the dry riverbed of the town of the same name. Today there is no water in the river, where local residents swam and summer vacationers camped on its banks 15 years ago. CREDIT: Orlando Milesi / IPS

Flowers and trees also benefit

In Villa Puclaro, in the Coquimbo municipality of Vicuña, Raúl Ángel Flores, 55, has an ornamental plant nursery.

“I’ve done really well. My nursery has grown with just reuse water….. I have more than 40,000 ornamental, fruit, native and cactus plants. I deliver to retailers in Vicuña and Coquimbo,” a port city in the region, he told IPS.

The nursery is 850 square meters in size, and has an accumulation pond and pumps to pump the water. He has now rented a 2,500-meter plot of land to expand it.

Flores explained to IPS that he manages the nursery together with his wife, Carolina Cáceres, and despite the fact that they have two daughters and a senior citizen in their care, “we make a living just selling the plants…I even hired an assistant,” he added.

In the southern hemisphere summer he uses between 4,000 and 5,000 liters of water a day for irrigation.

“I have water to spare. Here it could be reused for anything,” he said.

Joining the project made it possible for Flores to make efficient use of water with a business model that in this case incorporates a fee for the water to the plant management, which is equivalent to 62 cents per cubic meter used.

Arnoldo Olivares operates the water treatment and recycling plant in Plan de Hornos, northern Chile. The plant’s infrastructure and operation have been upgraded, and it can now deliver water to rural residents to irrigate trees and plants, instead of using potable water. CREDIT: Orlando Milesi / IPS

Eliminating odors, and creating new gardens

In the community of Huatulame, in the municipality of Monte Patria, Fundación Chile built an artificial surface wetland to put an end to the bad odors caused by effluents from a deficient waste-eater earthworm vermifilter treatment plant.

“This wetland has brought us peace because the odors have been eliminated. For the past year people have been able to walk along the banks of the old riverbed,” Deysy Cortés, 72, president of the APR, told IPS.

The municipality of Monte Patria is financing the repair of the plant with the equivalent of 100,000 dollars.

“The sprinklers will be changed, the filtering system will be replaced, and sawdust and worms will be added. It will be up and running in a couple of months,” explained agronomist Jorge Núñez, a consultant for Fundación Chile.

As in other renovated plants, safe infiltration of wastewater is ensured while the project simultaneously promotes the protection of nearby wells to provide water to the villagers.

The Huatulame treatment plant in the rural municipality of Monte Patria in northern Chile is being completely repaired with the support of the local municipality. Waterproof plastic sheeting and boulders have been installed, and in the final stage sawdust and earthworms will be incorporated before receiving wastewater from local households for reuse. CREDIT: Orlando Milesi / IPS

Cortés warned of serious difficulties if no more rain falls in the rest of 2023, despite the relief provided by the plant for irrigation.

“I foresee a very difficult future if it doesn’t rain. We will go back to what we experienced in 2019 when in every house there were bottles filled with water and a little jug to bathe once a week,” she said.

During a recent crisis, the local APR paid 2500 dollars to bring in water from four 20,000-liter tanker trucks.

In Plan de Hornos, a town in the municipality of Illapel, irrigation technology was installed using reused water instead of drinking water to create a green space for the community to enjoy.

The project included water taps in people’s homes for residents to water trees and flowers.

Arnoldo Olivares, 59, is in charge of the plant, which has 160 members.

“I run both systems,” he told IPS. “I pour drinking water into the pond. After passing through the houses, the water goes into the drainage system, where there is a procedure to reclaim and treat it.”

“This water was lost before, and now we reuse it to irrigate the saplings. We used to work manually, now it is automated. It’s a tremendous change, we’re really happy,” he said.

Antiquera the alfalfa farmer is happy with his success in Cerrillos de Tamaya, but warns that in his area 150 to 160 mm of rainfall per year is normal and so far only 25 mm have fallen in 2023.

“The water crisis forces us to find alternatives and to be 100 percent efficient. Not a drop of water can be wasted. They have forecast very high temperatures for the upcoming (southern hemisphere) summer, which means that plants will require more water in order to thrive,” he said.

Díaz, the sustainability manager of Fundación Chile, said the Coquimbo projects are fully replicable in other water-stressed areas of Chile if a collaborative model is used.

He noted that “in Chile there is no law for the reuse of treated wastewater. There is only a gray water law that was passed years ago, but there are no regulations to implement it.”

He explained, however, that due to the drought, “rural localities today are already reusing wastewater or gray water. This is going to happen, with or without us, with or without a law. The need for water is so great that the communities are accepting the use of treated wastewater.”

The governor of Coquimbo, Krist Naranjo, argued that “a broader vision is needed to value water resources that are essential for life, especially in the context of global climate change.”

“We’re working on different initiatives with different executors, but the essential thing is to value the reuse of graywater recycling,” she told IPS from La Serena, the regional capital.

Source

Biodigesters Light Up Clean Energy Stoves in Rural El Salvador

Posted on July 25, 2023 by admin

Marisol and Misael Menjívar pose next to the biodigester installed in March in the backyard of their home in El Corozal, a rural settlement located near Suchitoto in central El Salvador. With a biotoilet and stove, the couple produces biogas for cooking from feces, which saves them money. The biotoilet can be seen in the background. CREDIT: Edgardo Ayala / IPS

By Edgardo Ayala
SUCHITOTO, El Salvador , Jul 25 2023 (IPS)

A new technology that has arrived in rural villages in El Salvador makes it possible for small farming families to generate biogas with their feces and use it for cooking – something that at first sounded to them like science fiction and also a bit smelly.

In the countryside, composting latrines, which separate urine from feces to produce organic fertilizer, are very popular. But can they really produce gas for cooking?

“It seemed incredible to me,” Marisol Menjívar told IPS as she explained how her biodigester, which is part of a system that includes a toilet and a stove, was installed in the backyard of her house in the village of El Corozal, near Suchitoto, a municipality in the central Salvadoran department of Cuscatlán.”When the first ones were installed here, I was excited to see that they had stoves hooked up, and I asked if I could have one too.” — Marisol Menjívar

“When the first ones were installed here, I was excited to see that they had stoves hooked up, and I asked if I could have one too,” added Marisol, 48. Hers was installed in March.

El Corozal, population 200, is one of eight rural settlements that make up the Laura López Rural Water and Sanitation Association (Arall), a community organization responsible for providing water to 465 local families.

The families in the small villages, who are dedicated to the cultivation of corn and beans, had to flee the region during the country’s 1980-1992 civil war, due to the fighting.

After the armed conflict, they returned to rebuild their lives and work collectively to provide basic services, especially drinking water, as have many other community organizations, in the absence of government coverage.

In this Central American country of 6.7 million inhabitants, 78.4 percent of rural households have access to piped water, while 10.8 percent are supplied by wells and 10.7 percent by other means.

With small stoves like this one, a score of families in El Corozal in central El Salvador cook their food with biogas they produce themselves, thanks to a government program that has brought clean energy technology to these remote rural villages. CREDIT: Edgardo Ayala / IPS

Simple green technology

The biodigester program in rural areas is being promoted by the Salvadoran Water Authority (Asa).

Since November 2022, the government agency has installed around 500 of these systems free of charge in several villages around the country.

The aim is to enable small farmers to produce sustainable energy, biogas at no cost, which boosts their income and living standards, while at the same time improving the environment.

The program provides each family with a kit that includes a biodigester, a biotoilet, and a small one-burner stove.

In El Corozal, five of these kits were installed by Asa in November 2022, to see if people would accept them or not. To date, 21 have been delivered, and there is a waiting list for more.

In El Corozal, a rural settlement in the municipality of Suchitoto in central El Salvador, the technology of family biodigesters arrived at the end of last year, and some families are now producing biogas to light up their stoves and cook their food at no cost. CREDIT: Edgardo Ayala / IPS

“With the first ones were set up, the idea was for people to see how they worked, because there was a lot of ignorance and even fear,” Arall’s president, Enrique Menjívar, told IPS.

In El Corozal there are many families with the surname Menjívar, because of the tradition of close relatives putting down roots in the same place.

“Here we’re almost all related,” Enrique added.

The biodigester is a hermetically sealed polyethylene bag, 2.10 meters long, 1.15 meters wide and 1.30 meters high, inside which bacteria decompose feces or other organic materials.

This process generates biogas, clean energy that is used to fuel the stoves.

The toilets are mounted on a one-meter-high cement slab in latrines in the backyard. They are made of porcelain and have a handle on one side that opens and closes the stool inlet hole.

One of the main advantages that family biodigesters have brought to the inhabitants of El Corozal, a small village in the Salvadoran department of Cuscatlán, is that the whole process begins with clean, hygienic toilets, like this one set up in Marleni Menjívar’s backyard, as opposed to the older dry composting latrines, which drew flies and cockroaches. To the left of the toilet is the small handle used to pump water to flush the feces into the biodigester. CREDIT: Edgardo Ayala / IPS

They also have a small hand pump, similar to the ones used to inflate bicycle tires, and when the handle is pushed, water is pumped from a bucket to flush the waste down the pipe.

The underground pipe carries the biomass by gravity to the biodigester, located about five meters away.

The system can also be fed with organic waste, by means of a tube with a hole at one end, which must be opened and closed.

Once it has been produced, the biogas is piped through a metal tube to the small stove mounted inside the house.

“I don’t even use matches, I just turn the knob and it lights up,” said Marisol, a homemaker and caregiver. Her husband Manuel Menjívar is a subsistence farmer, and they have a young daughter.

In El Corozal, biodigesters have been installed for families of four or five members, and the equipment generates 300 liters of biogas during the night, enough to use for two hours a day, according to the technical specifications of Coenergy, the company that imports and markets the devices.

But there are also kits that are used by two related families who live next to each other and share the equipment, which includes, in addition to the toilet, a larger biodigester and a two-burner stove.

With more sophisticated equipment, electricity could be generated from biogas produced from landfill waste or farm manure, although this is not yet being done in El Salvador.

Marleni Menjivar gets ready to heat water on her ecological stove, watched closely by her four-year-old daughter, in El Corozal in central El Salvador, where an innovative government program to produce biogas has arrived. With this technology, people save money by buying less liquefied gas while benefiting the environment. CREDIT: Edgardo Ayala / IPS

Saving money while caring for the environment

The families of El Corozal who have the new latrines and stoves are happy with the results.

What they value the most is saving money by cooking with gas produced by themselves, at no cost.

They used to cook on wood-burning stoves, in the case of food that took longer to make, or on liquefied gas stoves, at a cost of 13 dollars per gas cylinder.

Marleni Menjívar, for example, used two cylinders a month, mainly because of the high level of consumption demanded by the family business of making artisanal cheeses, including a very popular local kind of cottage cheese.

Every day she has to cook 23 liters of whey, the liquid left after milk has been curdled. This consumes the biogas produced overnight.

For meals during the day Marleni still uses the liquefied gas stove, but now she only buys one cylinder a month instead of two, a savings of about 13 dollars per month.

“These savings are important for families here in the countryside,” said Marleni, 28, the mother of a four-year-old girl. The rest of her family is made up of her brother and grandfather.

“We also save water,” she added.

The biotoilet requires only 1.2 liters of water per flush, less than conventional toilets.

In addition, the soils are protected from contamination by septic tank latrines, which are widely used in rural areas, but are leaky and unhygienic.

The new technology avoids these problems.

The liquids resulting from the decomposition process flow through an underground pipe into a pit that functions as a filter, with several layers of gravel and sand. This prevents pollution of the soil and aquifers.

Also, as a by-product of the decomposition process, organic liquid fertilizer is produced for use on crops.

Most families in the rural community of El Corozal have benefited from one-burner stoves that run on biogas produced in family biodigesters. Larger two-burner stoves are also shared by two related families, where they cook on a griddle one of the favorite dishes of Salvadorans: pupusas, corn flour tortillas filled with beans, cheese and pork, among other ingredients. CREDIT: Coenergy El Salvador

Checking on site: zero stench

Due to a lack of information, people were initially concerned that if the biogas used in the stoves came from the decomposition of the family’s feces, it would probably stink.

And, worst of all, perhaps the food would also smell.

But little by little these doubts and fears faded away as families saw how the first devices worked.

“That was the first thing they asked, if the gas smelled bad, or if what we were cooking smelled bad,” said Marleni, remembering how the neighbors came to her house to check for themselves when she got the latrine and stove installed in December 2022.

“That was because of the little information that was available, but then we found that this was not the case, our doubts were cleared up and we saw there were no odors,” she added.

She said that, like almost everyone in the village, her family used to have a dry composting toilet, but it stank and generated cockroaches and flies.

“All that has been eliminated, the bathrooms are completely hygienic and clean, and we even had them tiled to make them look nicer,” Marleni said.

She remarked that hygiene is important to her, as her little girl can now go to the bathroom by herself, without worrying about cockroaches and flies.

Rural Women’s Constant Struggle for Water in Central America

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‘Passion Seeds’ Fertilize Brazil’s Semiarid Northeast

Posted on July 14, 2023 by admin

Ligoria Felipe dos Santos poses for a photo on her agroecological farm that mixes corn, squash, fruits, vegetables and medicinal herbs. She is part of the women’s movement that is trying to prevent the installation of wind farms in the Borborema mountain range, in the northeastern Brazilian state of Paraíba. CREDIT: Mario Osava / IPS

By Mario Osava
ESPERANÇA, Brazil , Jul 14 2023 (IPS)

Zé Pequeno cried when he learned that the heirloom seeds he had inherited from his father were contaminated by the transgenic corn his neighbor had brought from the south. Fortunately, he was able to salvage the native seeds because he had shared them with other neighbors.

Euzébio Cavalcanti recalls this story from one of his colleagues to highlight the importance of “passion seeds” for family farming in Brazil’s semiarid low-rainfall ecoregion which extends over 1.1 million square kilometers, twice the size of France, in the northeastern interior of the country.”These are seeds adapted to the semiarid climate. They can withstand long droughts, without irrigation.” Euzébio Cavalcanti

Saving heirloom seeds is a peasant tradition, but two decades ago the Brazilian Semiarid Articulation (ASA), a network of 3,000 social organizations that emerged in the 1990s, named those who practice it as individual and community guardians of seeds. By September 2021, it had registered 859 banks of native seeds in the region.

Cavalcanti, a 56-year-old farmer with multiple skills such as poet, musician and radio broadcaster, coordinates the network of these banks in the Polo de Borborema, a joint action area of 14 rural workers’ unions and 150 community organizations in central-eastern Paraíba, one of the nine states of the Brazilian Northeast.

“These are seeds adapted to the semiarid climate. They can withstand long droughts, without irrigation, that is why they are so important,” he explained. They also preserve the genetic heritage of many local crop species and family history; they have sentimental value.

“Don’t plant transgenics, don’t erase my history”, is a slogan of the movement that promotes agroecological practices and is opposed to the expansion of genetically modified organisms in local agriculture. “Corn free of transgenics and agrotoxins (agrochemicals)” is the goal of their campaign.

In Paraíba, the name “passion seeds” has been adopted, instead of native or heirloom seeds, since 2003, when the state government announced that it would provide seeds from a specialized company to family farmers.

“If the government offers these seeds, I don’t want them. I have family seeds and I have passion for them,” reacted a farmer in a meeting with the authorities.

“‘Passion seeds’ spread throughout Paraíba. In other states they’re called ‘seeds of resistance’,” Cavalcanti said.

Agroecology is one of the banners of the Polo de Borborema, as it is for ASA in the entire semiarid ecosystem that covers most of the Northeast region and a northern strip of the southeastern state of Minas Gerais.

“Passion seeds,” as heirloom seeds are known locally, ensure better harvests on semiarid lands, free of transgenics or “agricultural poisons,” according to Euzébio Cavalcanti, a small farmer, poet and musician who helped lead the struggle for agrarian reform and cares for the seeds in the highlands of Borborema, in northeastern Brazil. CREDIT: Mario Osava / IPS

Learning to coexist with semiarid conditions

This approach arose from a change in the development strategy adopted on the part of local society, especially ASA, since the 1990s. “Coexisting with semiarid conditions” replaced the traditional, failed focus on “fighting the drought”.

Large dams and reservoirs, which only benefit large landowners and do not help the majority of small farmers, gave way to more than 1.2 million tanks for collecting rainwater from household or school rooftops and various ways of storing water for crops and livestock.

It is a process of decolonization of agriculture, education and science, which prioritizes knowledge of the climate and the regional biome, the Caatinga, characterized by low, twisted, drought-resilient vegetation. It also includes the abandonment of monoculture, with the implementation of traditional local horticultural and family farming techniques.

The Northeast, home to 26.9 percent of the national population, or 54.6 million inhabitants according to the 2022 demographic census, concentrates 47.2 percent of the country’s family farmers, according to the 2017 agricultural census. There are 1.84 million small farms worked mainly by family labor.

Brazil’s semiarid region is one of the rainiest in the world for this type of climate, with 200 to 800 millimeters of rain per year on average, although there are drier areas in the process of desertification.

A stand at the ecological market in the municipality of Esperança, in northeastern Brazil, is a link between urban consumers and family farmers opposed to agrochemicals, monoculture and transgenic products. CREDIT: Mario Osava / IPS

Borborema, the name of a high plateau that obstructs the humidity coming from the sea, making the territory to its west drier, is the scene of various peasant struggles, such as the mobilization for agrarian reform since the 1980s and for small-scale agriculture “without poisons” or agrochemicals, of which the “seeds of passion” are a symbol.

Cavalcanti is a living memory of local history, also as a founder of the local Landless Workers Movement (MST) and an activist in the occupations of unproductive land to create rural settlements, on one of which he gained his own small farm where he grows beans, corn and, vegetables and has two rainwater collection tanks.

Women help drive the expansion of agroecology

Women have played a key role in the drive towards agroecology. The March for Women’s Lives and Agroecology is an annual demonstration that since 2010 has defended family farming and the right to a healthy life.

This year, on Mar. 16, 5,000 women gathered in Montadas, a municipality of 5,800 inhabitants, to block the creation of wind farms that have already caused damage to the health of small farmers by being installed near their homes.

Borborema is “a territory of resistance,” say the women. About 15 years ago, they succeeded in abolishing the cultivation of tobacco.

The president of the Union of Rural Workers of the municipality of Esperança, Alexandre Lira (C) and other leaders pose in front of a poster declaring the union’s current goals: “Agroecological Borborema is no place for a wind farm,” he says about this area in Brazil’s semiarid Northeast region. CREDIT: Mario Osava / IPS

When the citrus blackfly arrived, the government tried to combat it with pesticides, but “we resisted; we used natural products and solved the problem for our oranges and lemons,” said Ligoria Felipe dos Santos, a 54-year-old mother of three.

“That is agroecology, which is strengthened in the face of threats. Farmers are aware, they resort to alternative defenses, they know that it is imbalance that leads to pests,” she told IPS.

“Agroecology is a good banner for union activity,” said Lexandre Lira, 42, president of the Rural Workers Union of Esperança, a municipality of 31,000 people in the center of the Polo de Borborema.

It is also a factor in keeping farmers’ children on the farms, because it awakens the interest of young people in agriculture, said Edson Johny da Silva, 27, the union’s youth coordinator.

Maria das Graças Vicente and Givaldo Firmino dos Santos stand next to the machine they use for making pulp from native fruits little known outside Brazil, such as the umbu (Brazil plum), cajá (hog plum), acerola (Amazon or Barbados cherry), along with cashews, mangos, and guava. CREDIT: Mario Osava / IPS

Pulp, added value

Maria das Graças Vicente, known as Nina, 51, along with her husband Givaldo Firmino dos Santos, 52, is an example of agroecological productivity. On 1.25 hectares of land they produce citrus fruits, passion fruit, acerola (Amazon or Barbados cherry), mango and other fruits, as well as sugar cane, corn, beans and other vegetables.

Grafted fruit tree seedlings are another of the products they use to expand their income, as IPS was shown during a visit to their farm.

Using their own harvest and fruit they buy from neighbors, they make pulp in a small shed separate from their home, with a small machine purchased with the support of the Advisory and Services to Projects in Alternative Agriculture (AS-PTA), a non-governmental organization that supports farmers in Borborema and other parts of Brazil.

“Luckily we have a microclimate in the valley, where it rains more than in the surrounding areas. Everything grows here,” Santos told IPS.

But the couple created three reservoirs to collect rainwater and withstand droughts: a 16,000-liter water tank for household use, another that collects water on the paved ground for irrigation, and a small lagoon dug in the lower part of the farm.

But in 2016 the lagoon dried up, because of the “great drought” that lasted from 2012 to 2017, Vicente said.

The fruit pulp factory has grown in recent years and now has seven small freezers to store fruit and pulp for sale to the town’s stores and restaurants. The couple decided to purchase a cold room with the capacity of 30 freezers.

“I work in the mornings on the land, in the afternoons I make pulp and my husband is in charge of the sales,” she said.

Hiring workers from outside the family to reduce the workload costs too much and “we try to save as much as possible on everything, to sell the pulp at a fair price,” Santos said.

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Quest for Safe Water in One of India’s Most Isolated Villages

Posted on July 4, 2023 by admin

Simita Devi, whose daughter spent days in hospital recently suffering from typhoid caused by contaminated water, collects clean water brought to the surface by a solar pump. Credit: Umar Manzoor Shah/IPS

By Umar Manzoor Shah
Champad, India, Jul 4 2023 (IPS)

Simita Devi spent over ten days in a government-run hospital a year ago anxiously watching her critically ill nine-year-old daughter, Gudiya, who was diagnosed with typhoid.

Gudiya was so sick she even went into a coma for a day. Medical staff attending to the child said she contracted the disease from drinking contaminated water.

After being discharged, Devi’s main worry was to get safe drinking water for her ailing daughter.

She was advised not to consume water from village wells or untested sources like river streams or springs.

Hailing from Champad, a tribal village in India’s Jharkhand state, Devi works as a daily wage labourer alongside her husband. With a limited income, Devi couldn’t afford packaged drinking water for her daughter.

She then decided to boil the water using firewood to make it safe to drink. But to get the firewood, she had to trek the treacherous terrains of the nearby forests – a long, difficult work and the fear of wild animals loomed.

It was not Devi alone impacted by contaminated water, it was making many people in her village ill, and there was nothing the inhabitants could do about it.

According to government records, 80% of India’s rural drinking water comes from underground sources. One-third of India’s 600 districts do not have safe drinking water because fluoride, iron, salinity, and arsenic concentrations exceed tolerance levels. India’s water quality is poor, ranking at 120 of 122 nations.

The solar panels on the water tower have meant clean waters for the villagers of Champad, a tribal village in India’s Jharkhand. Credit: Umar Manzoor Shah/IPS

Experts believe that the source of these heavy metals is industrial waste being dumped untreated into water systems and nitrates which surface due to excessive and prolonged use of fertilizers. The government estimates that every year, over one lakh (100,000) people die of waterborne diseases in the country.

Champad, a village inhabited by a tribal community, has 105 households per the 2011 census. Until 2022, the community depended on only two tube wells as their source of drinking water. However, these tube wells often experienced malfunctions, leaving the villagers with no choice but to fetch water from a nearby river or pond. Consequently, there has been a rise in waterborne diseases, particularly affecting the health of women and children. The need to travel long distances for safe drinking water has increased women’s workload, increasing their workload.

Perturbed by the threat of waterborne diseases, the village locals congregated earlier this year to try to find a solution. They at first visited the local politicians for help. Then they headed towards government offices. “Nothing happened—absolutely nothing. We were virtually left high and dry. Except for God, no one is there to help us. At times, we were told to wait, and at times, we were told that government funding wasn’t available. But we were slowly dying. Our children are suffering in front of our own eyes,” Ram Singh, a local villager at Champad, told IPS.

Earlier this year, a team from a non-governmental agency working to uplift rural areas in India visited the village to assess the villagers’ hardships.

The agency then mooted the idea of a solar water tower in the village. The villagers were made aware of the process involved in the tower’s construction and that government approval for the facility was needed.

The village representatives were taken on board, and a proposal was submitted to the water department of the district.

“Government liked the idea, and it was readily approved. The entire village worked together to make the project a success story,” says a member of the humanitarian agency who wished to remain anonymous.

The towers were equipped with solar panels, enabling them to operate sustainably and with minimal environmental impact. The selection of sites for the towers was a collaborative effort involving the village communities. The first solar water tower was constructed in February 2023, while work on the other two towers is still ongoing. As a result, 45 families now directly benefit from the convenience of having clean drinking water channelled to their homes through pipelines. The water provided is of good quality and considered safe, in contrast to the open well water that was previously relied upon. This development has significantly alleviated the burden on women, who no longer have to travel long distances to fetch water from various sources.

The impact of this intervention was significant. The community’s health improved, and they were no longer at risk of waterborne illnesses. The women and children, who were often responsible for collecting water from distant sources, could now spend their time on other activities. The community’s overall quality of life improved, and they could focus on their livelihoods and education.

For Simita Devi, the facility is no less than a major solace in her life. She excitedly uses this water for drinking and thanks God for such an endeavour.

“Safe water means life for us. The solar tower has become a messiah for poor villagers like us. We will cherish the moments for life when we find its water coming to our homes,” Devi told IPS.

IPS UN Bureau Report

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