Project

Halting the implementation of large dams in the Americas

The more we learn, the clearer it becomes that large dams are unsustainable energy sources.

From the Mexican highlands to the Amazon River basin, hydroelectric mega-projects are aggravating climate change, destroying sensitive ecosystems, and threatening human rights and indigenous cultures.

In October 2016, a research study from Washington State University found that the world’s reservoirs generate 1.3 percent of all greenhouse gases (more than the total emissions of Canada!), confirming the damage dams do to our climate.

Large dams have no place on our rapidly changing planet. In a time of intensifying droughts, many vulnerable hydropower-dependent countries are facing energy shortages. And as extreme weather events increase around the world, the inherent danger of large dams becomes more evident. 

Throughout the construction of Belo Monte, the world’s third largest dam, we’ve seen firsthand the grave impacts these projects have on the ecosystems in which they’re built. We’ve witnessed the violations they impose on the rights of indigenous and riverine communities, whose culture and livelihoods are tied so closely to the natural world.

Yet, across Latin America and the world, large dams are still being promoted as “clean and green” energy sources; and are even receiving support from national and international climate initiatives.

That support is part of the reason more than 3,700 large dams are currently being planned or constructed worldwide, more than 400 of which have been proposed for the vital Amazon River Basin.

At AIDA, we’re proud to be part of a team leading the fight against large dams across Latin America and beyond.

Latest News


Say no to large dams: 3 reasons to opt for alternative energy sources

By Florencia Ortúzar and Monti Aguirre* Hydroelectric energy has been one of the largest drivers of development in many Latin American nations, and still represents a large portion of the region’s energy matrix. But is it really the best option? In response to a blog by the Inter-American Development Bank reflecting on the future of the hydroelectric sector in Latin America, we’d like to reflect on what it means to continue betting on large dams in Latin America. What follows are three reasons why we must say no to more large dams: 1. Better alternatives to hydroelectricity exist, and should be considered in project planning Before selecting an alternative energy source, governments and companies should develop a strategic plan that analyzes energy needs and the best way of achieving them. In this analysis, all options must be considered. It’s worrysome that this doesn’t already happen. For example, in the case of the Hidroituango dam—thought to be the largest in Colombia and associated with serious socio-environmental damages—the government decided to not conduct a prior evaluation of alternatives. Although the law did not require it at the time, the evaluation was recommended and is an international standard that large financial institutions should apply when investing in projects of this type. Today, other energy sources—like wind and solar—are proven to be economically competitive, can be constructed more quickly, and do not aggravate climate change. Innovations in smart grids, power storage and batteries also solve intermittency problems and make hydroelectric plants unnecessary. Geothermal, tidal, and wave energy are alternatives, the potential of which we have not even glimpsed. The promotion of large dams only delays adoption of the truly clean energy solutions that Latin America and the planet desperately need. According to the Bank’s own studies, Latin America has the largest quantity and most varied sources of renewable energy in the world. The region's renewable resources could provide almost seven times the installed capacity worldwide, excluding hydroelectric power. Therefore, although the region still holds great potential for untapped hydroelectric power, it’s necessary to conduct a comprehensive evaluation of the situation, taking into account the costs and benefits as compared to other energy options. Only then can governments decide whether it’s worth continuing to invest in hydropower, or whether it’s better to opt for other types of energy—thus avoiding the social, environmental and financial impacts that come with large dams. 2. Large dams cause socio-environmental damage and are not profitable It has been demonstrated repeatedly that the socio-environmental impacts of hydroelectric plants are greater than initially considered. In addition to forced displacement and the criminalization of those who oppose them, large dams flood land, reduce river flows, and change the ecosystems of downstream wetlands, destroying habitats and contributing to species extinction. All this impacts the lives of nearby communities, limiting their ability to adapt to climate change. In economic terms, a study by the University of Oxford concluded that “even before accounting for the negative impacts on human society and environment, the actual construction costs of large dams are too high to yield a positive return.” In it, researchers show that the budgets and timeframes of large dam projects are consistently underestimated. Brazil’s Belo Monte Dam, for example, ran two times over its original budget, making it the most expensive public works project in the Amazon region. The budget of Chile’s Alto Maipo Dam has doubled four times over since the project was approved in 2009. Recognizing that the costs far outweigh the benefits, some countries have opted for dismantling large dams. And private companies have scrapped hydroelectric projects altogether because they are neither economically viable nor profitable. The United States government  has adopted a policy to refuse any loan, donation, strategy or policy supporting the construction of large dams. 3. Large dams contribute to climate change Climate change must be considered when discussing the relevance of hydroelectricity. Reservoirs generate significant quantities of greenhouse gases, particularly methane, which is 30 times more effective at trapping heat than carbon dioxide. Likewise, the construction of dams endangers valuable carbon sinks like rivers and forests. For that reason, a proper analysis of carbon dioxide and methane emissions should be conducted before choosing a dam project—a process that usually doesn't occur. Another aspect to consider is the vulnerability of dams to climate variations. Extreme rainfall increases sedimentation, which can cause structural problems and reduce the dam's lifespan. Droughts, now increasingly frequent, can render dams inefficient. As more dams lose efficiency, Latin America—now highly dependent on hydroelectricity—will be more vulnerable to energy shortages. Even more serious is the threat posed by large dams in extreme weather events. In a dam gave way during bad weather, erasing entire villages. In Laos earlier this year, mass evacuations were ordered after heavy rains threatened a dam collapse. In Kerala, India, torrential rains, coupled with the mismanagement of several dams, have caused unprecedented flooding. In certain countries, the risk of dams overflowing or collapsing has already been recognized as a serious problem. Over time, more hydroelectric plants will begin to deteriorate and will require large investments to safeguard the communities living downstream. As civil society representatives working for a more just and sustainable Latin America, we urge financial institutions like the Inter-American Development Bank to support the change we as a region need. We call on them to stop investing in large dams, which have been demonstrated time and again to be dangerous to the environment and local communities, costly for countries, and unsuited for our rapidly changing climate. It’s time for a better energy plan. And it’s time to invest in non-conventional renewable energy based on thorough, independent and high-quality social and environmental impact assessments, the planning and implementation of which respect human rights. * Monti Aguirre is the Latin America Program Coordinator for International Rivers.  

Read more

The women defending Guatemala’s rivers from large dams

When Maria gets up each morning, the first thing she does is open the tap in her house to see if there’s any water. If there is, she prepares coffee and, within a few hours, food for her family. Her house is alive with plants and animals. Dogs, cats and chickens surround her as she lights the wood stove, carrying her young son on her back. Maria lives in Ixquisis, a region of northwestern Guatemala near the Mexican border, in the department of Huehuetenango. There, water springs from the earth and large rivers like the Pojom and the Negro flow through the mountains. For Maria, the river is a special place. There, she meets with other women and washes clothes, a traditional activity for women in her community, most of whom are indigenous. Each afternoon, as the water flows steadily downstream, they talk about their families, their to-do lists, their joys and their worries. Last month, Maria joined with the other women of Ixquisis to speak about the threats the dams pose to their way of life.  They were part of a workshop AIDA organized in collaboration with Protection International and the International Platform Against Impunity. Maria’s life has changed a lot since they started building the Pojom II and San Andrés dams, and she’s been losing sleep. Before the construction of the dams began, Maria used to fish. By submerging a basket in the river, she gathered—as if by magic—snails, shrimp and small fish. These are riches the river no longer provides. Instead, the once pristine river has become filled with garbage, rubble and other debris. The workers use its water to wash cars and machinery. “One day we will run out of water and we won’t be able to live,” Maria said, echoing the primary fear of the women of Ixquisis. “Our children will suffer.” Their fear is well founded. Many families like Maria’s already suffer from stomach and skin diseases that they associate with water pollution. Before the workshop, the women of Ixquisis hadn’t had the opportunity to speak publicly about the importance of water and the rivers in their lives. They hadn’t been able to explain how their rivers had changed since the dams’ construction began. They had also never been provided with information about the projects. But even without knowing the details of the dams, Maria and her neighbors understood that the water in their homes no longer arrived as cleanly or as regularly as before. Time and again, they have peacefully expressed their opposition to the dams. But their voices have been stigmatized and shaken by fear of reprisal. Before Maria walked calmly through her community, even at night. She now leaves the house in fear. But the people of Ixquisis have the support of people and organizations that work to protect the environment and human rights. The international organization Front Line Defenders, for example, recently awarded them the 2018 Award for Human Rights Defenders at Risk.  One day after the women’s workshop, we organized a second meeting attended by the men of the region. The lack of water has affected their main subsistence activity: the cultivation of bananas, cardamom, vegetables and other products they take to market. Because their harvests have decreased, they must now work more hours to obtain the same profit. I learned a lot from Maria. Her strength, as well as that of all the residents of Ixquisis, comes from her respect for nature and all it offers them. I share that feeling and channel it into my work as an AIDA attorney, legally advising the men and women of Ixquisis on how to defend their territory. I work so that water will continue to flow from their taps, and so that they can one day walk again without fear, in search of a healthier future for their children.  

Read more

Large Dams, Human Rights

Communities affected by Hidroituango dam in Colombia file complaint at IDB

In the midst of the humanitarian crisis caused by the Hidroituango dam project in the Cauca river basin, local communities request that the Inter-American Development Bank (IDB)’s accountability mechanism investigate whether the financial entity violated its environmental and social standards when investing in the project. Washington, D.C. Communities affected by the construction of the Hidroituango dam in Antioquia, Colombia, filed a complaint with the Independent Consultation and Investigation Mechanism (MICI) of the Inter-American Development Bank (IDB) at its Washington, DC headquarters today. The complaint requests that this accountability office investigate whether the IDB, through both its public and private lending arms, violated its own social and environmental standards when it invested in the project. Through the complaint, the affected communities, represented by Movimiento Ríos Vivos Antioquia, highlight that the bank did not follow its policies that investment projects must be sustainable, participatory and respectful of national legislation in the case of HidroItuango. There was no adequate environmental impact assessment, communities did not have access to participation or information, and the project occurs in a context of human rights violations and disproportionate use of force. It has also endangered the lives of thousands of people, who have had to be evacuated ad hoc due to the dam crisis. This contradicts the social and environmental standards required of IDB investments. The hydroelectric plant will be the largest in Colombia, with a 49 mile (79 km) reservoir that will flood a surface of 11,120 acres (4,500 hectares). The IDB Group has financed the project through various types of investment. In 2012, it approved a $2 million in technical cooperation for the Colombian State and in 2016, $550 million in direct investments to the company in charge of the project, Empresas Públicas de Medellín (EPM). In addition, the IDB manages a $1 billion loan package for the project, with funds from multiple institutional investors, including banks in Europe (KfW IPEX (Germany), BNP Paribas (France), BBVA y Banco Santander (Spain)), Asia (ICBC (China), Sumitomo Mitsui (Japan)), and Canada (CDPQ). The MICI responds to complaints from individuals and communities affected by IDB-financed development projects. The communities settled in the Cauca river basin and its tributaries that are affected by Hidroituango, are accompanied in the complaint process by the Center for International Environmental Law (CIEL), Interamerican Association for Environmental Defense (AIDA) and International Accountability Project (IAP). The claim comes amid a humanitarian crisis in the dam construction area and a wave of increasing violence against people who are defending their territory and water and oppose the project. What began on April 28 with the obstruction of one of the dam's tunnels has resulted in landslides, floods, and thousands of people displaced from their homes. All this has exposed the inadequate evaluation of project impacts and the poor environmental regulation under which the project was authorized on every front. The state of emergency in the area is still in effect, and neither the Colombian government or the company has ruled out the risk of the dam collapsing. The members of Movimiento Ríos Vivos have suffered multiple threats, intimidations, and rights violations. Between May 2 and 8, two of its members were killed. In addition, the region where the dam is located has been affected by historical violence and armed conflict. press contacts Isabel Zuleta, Movimiento Ríos Vivos Antioquia, +57 3217347264, [email protected] Carla García, Center for International Environmental Law, [email protected] Astrid Puentes, Interamerican Association for Environmental Defense, [email protected]             Carlos Lozano, Interamerican Association for Environmental Defense, [email protected] Alexandre Sampaio, International Accountability Project, [email protected]  

Read more