Project
Amazon Watch / Maíra Irigaray
The Belo Monte Dam on the Xingu River: 10 years of impacts in the Amazon and the search for reparations
The Belo Monte Dam has caused an environmental and social disaster in the heart of the Amazon—one of the most important ecosystems on the planet.
This situation has only worsened since the hydroelectric plant began operations in 2016. The quest for justice and reparations by the affected indigenous, fishing, and riverine communities continues to this day.
In 2011, the Inter-American Commission on Human Rights (IACHR) granted them protective measures that, to date, have not been fully implemented by the Brazilian State.
Furthermore, since June of that same year, the IACHR has yet to rule on a complaint against the State regarding its international responsibility in the case.
The IACHR may refer the case to the Inter-American Court of Human Rights, which has the authority to issue a ruling condemning the Brazilian State.
Background
The Belo Monte hydroelectric plant—the fourth largest in the world by installed capacity (11,233 MW)—was built on the Xingu River in Pará, a state in northern Brazil.
It was inaugurated on May 5, 2016, with a single turbine. At that time, 80% of the river’s course was diverted, flooding 516 km² of land—an area larger than the city of Chicago. Of that area, 400 km² was native forest. The dam began operating at full capacity in November 2019.
Belo Monte was built and is operated by the Norte Energia S.A. consortium, which is composed primarily of state-owned companies. It was financed by the Brazilian Development Bank (BNDES), which provided the consortium with 25.4 billion reais (approximately US$10.16 billion), the largest investment in the bank’s history. Therefore, the BNDES is also legally responsible for the socio-environmental impacts associated with the hydroelectric plant.
Decades of harm to the environment and people
Human rights violations and degradation of the Amazon have been occurring since the project’s inception. In March 2011, Norte Energía began construction of the dam without adequate consultation and without the prior, free, and informed consent of the affected communities.
The construction caused the forced displacement of more than 40,000 people, severing social and cultural ties. The resettlement plan in Altamira—a city directly affected by the hydroelectric dam—involved housing units located on the outskirts, lacking adequate public services and decent living conditions for the relocated families, with no special provisions for those from indigenous communities.
Belo Monte's operations have caused a permanent, man-made drought in the Volta Grande (or "Great Bend") of the Xingu River, exacerbated by the historic droughts in the Amazon in 2023 and 2024. As a result, the deaths of millions of fish eggs were documented for four consecutive years (from 2021 to 2024), and for the past three years, there has been no upstream migration of fish to spawn and reproduce. Thus, artisanal fishing, the main source of protein for indigenous peoples and riverside communities, was severely affected: fish dropped from 50% to 30% of total protein consumed, replaced by processed foods. In summary, there was an environmental and humanitarian collapse that resulted in the breakdown of fishing as a traditional way of life, food insecurity, and access to drinking water for thousands of families, impoverishment, and disease.
Furthermore, the construction of the dam increased deforestation and intensified illegal logging and insecurity on indigenous and tribal lands, putting the survival of these communities at risk. Another consequence was the deepening of poverty and social conflicts, as well as the strain on health, education, and public safety systems in Altamira—a city ranked as the most violent in the country in 2017, where human trafficking and sexual violence increased. Violence was also reported against human rights defenders involved in the case.
In 2025, during the 30th UN Climate Change Conference (COP30), held in Brazil, the Federal Public Prosecutor’s Office labeled the damage caused by the Belo Monte dam as ecocide.
The search for justice and reparations
Over the years, the Federal Public Prosecutor’s Office in Pará, the Public Defender’s Office, and civil society organizations have filed dozens of legal actions in Brazilian courts to challenge the project’s various irregularities and its impacts. Most of the claims are still pending resolution, some for more than 10 years.
These efforts have failed because the national government has repeatedly overturned rulings in favor of the affected communities by invoking a mechanism that allowed a court president to suspend a judicial decision based solely on generic arguments such as "the national interest" or "economic order."
In the absence of effective responses at the national level, AIDA, together with a coalition of partner organizations, brought the case before the Inter-American Commission on Human Rights (IACHR) and, in 2010, requested precautionary measures to protect the lives, safety, and health of the affected indigenous communities.
On April 1, 2011, the IACHR granted these measures and requested that the Brazilian government suspend environmental permits and any construction work until the conditions related to prior consultation and the protection of the health and safety of the communities are met.
And on June 16, 2011 —together with the Xingu Vivo Para Sempre Movement, the Coordinating Committee of Indigenous Organizations of the Brazilian Amazon, the Diocese of Altamira, the Indigenous Missionary Council, the Pará Society for the Defense of Human Rights and Global Justice— we filed a formal complaint against the Brazilian State for its international responsibility in the violation of the human rights of the people affected in the case. The case was opened for processing in December 2015.
On August 3, 2011, the IACHR amended the precautionary measures to request, instead of the suspension of permits and construction, the protection of people living in voluntary isolation, the health of indigenous communities, and the regularization and protection of ancestral lands.
Current situation
The protective measures granted by the IACHR remain in effect, but the Brazilian government has not fully complied with them, reporting only on general actions. The communities have documented the ongoing violations of their rights. The situation that prompted the request for these measures—the risk to the lives, physical integrity, and ways of life of the communities—persists and has worsened with the hydroelectric plant operating at full capacity and the recent extreme droughts in the Amazon.
In addition to the impacts of Belo Monte, there is a risk of further social and environmental impacts from the implementation of another mining megaproject in the Volta Grande do Xingu. There, the Canadian company Belo Sun plans to build Brazil’s largest open-pit gold mine.
The combined and cumulative impacts of the dam and the mine were not assessed. The government excluded Indigenous peoples, riverine and peasant communities from the project’s environmental permitting process. Despite protests by Indigenous communities and other irregularities surrounding the project, the government of Pará formally authorized the mine in April 2026.
Like other hydroelectric dams, Belo Monte exacerbates the climate emergency by generating greenhouse gas emissions in its reservoir. And it is inefficient amid the longer, more intense droughts caused by the crisis, as it loses its ability to generate power.
The case before the Inter-American Commission
In October 2017, the IACHR announced that it would rule jointly on the admissibility (whether the case meets the requirements for admission) and the merits (whether a human rights violation actually occurred) of the international complaint against the Brazilian State.
Fifteen years after the complaint was filed, the affected communities and the organizations representing them are still awaiting this decision. If the IACHR concludes that human rights violations occurred and issues recommendations that the Brazilian State fails to comply with, it may refer the case to the Inter-American Court of Human Rights, whose rulings are binding.
A potential ruling by the international court in this case would set a regional legal precedent regarding the rights of indigenous and riverine peoples, public participation in megaprojects, and state responsibility in the context of the climate crisis—a precedent that is particularly relevant in light of the Court’s Advisory Opinion No. 32, which reaffirmed the obligations of States to protect the people and communities of the continent from the climate emergency.
Partners:
Related projects
Why we’re working for climate justice in Latin America
“The world has many problems, but to me none seem as ubiquitous or as dangerous as climate change,” says AIDA attorney Florencia Ortúzar. “It really is the great challenge of our generation.” At AIDA we understand the magnitude of the problem. That’s why we incorporate climate justice as a key concept in all our lines of work. It’s why we advocate for sustainable development that respects the environment and the rights of vulnerable communities and, at the same time, why we work to stop climate-aggravating activities. “What motivates me to fight climate change is my awareness of the huge problem we’re facing, and my steadfast determination—I know we can’t give up,” Florencia says. She shares that motivation with AIDA’s entire team of attorneys, scientists, communicators, fundraisers and administrators. When she was a child, Florencia received a very special gift from her father: a badge that said “world saver.” That very day, on a beach in her native Chile, Florencia hooked the badge to her clothes and began picking up trash, cleaning the beach. That small gift jumpstarted her life’s mission. Florencia went on to study law, with the goal of working for the protection of forests, rivers, animals, and all the elements of the natural world. “Luck was with me when I found AIDA, the organization that has trained me and has enabled me to make my contribution to a better world,” she says. Florencia is part of AIDA’s Climate Change program. Our objective is to help Latin America—one of the regions most vulnerable to the climate crisis—be a leader in the type of changes required on a global level to avoid catastrophe. In partnership with allied organizations and hand-in-hand with communities, we work to stop the blind advance of fracking and large dams, mega-projects which imply significant emissions of methane, a greenhouse gas 34 times more powerful than carbon dioxide. We also work to raise awareness and educate public policy makers on the importance of controlling short-lived climate pollutants. We seek to protect terrestrial and marine ecosystems that capture carbon emissions—such as coral reefs, mangroves, wetlands and páramos—which, in turn, helps to mitigate climate change. We monitor international climate negotiations, advocate for Latin American nations to have the necessary economic resources to deal with climate change, and work to ensure that climate finance respects human rights. “Although many of the effects of climate change are inevitable, and may already be occurring, the efforts we make to stop the problem and to adapt to it will help future generations, who had nothing to do with causing the problem,” Florencia explains. She shares her message wherever she goes, encouraging others to join the fight. “I refuse to be part of the last generation to enjoy the natural wonders of our planet.”
Read moreWhy we’re working for climate justice in Latin America
“The world has many problems, but to me none seem as ubiquitous or as dangerous as climate change,” says AIDA attorney Florencia Ortúzar. “It really is the great challenge of our generation.” At AIDA we understand the magnitude of the problem. That’s why we incorporate climate justice as a key concept in all our lines of work. It’s why we advocate for sustainable development that respects the environment and the rights of vulnerable communities and, at the same time, why we work to stop climate-aggravating activities. “What motivates me to fight climate change is my awareness of the huge problem we’re facing, and my steadfast determination—I know we can’t give up,” Florencia says. She shares that motivation with AIDA’s entire team of attorneys, scientists, communicators, fundraisers and administrators. When she was a child, Florencia received a very special gift from her father: a badge that said “world saver.” That very day, on a beach in her native Chile, Florencia hooked the badge to her clothes and began picking up trash, cleaning the beach. That small gift jumpstarted her life’s mission. Florencia went on to study law, with the goal of working for the protection of forests, rivers, animals, and all the elements of the natural world. “Luck was with me when I found AIDA, the organization that has trained me and has enabled me to make my contribution to a better world,” she says. Florencia is part of AIDA’s Climate Change program. Our objective is to help Latin America—one of the regions most vulnerable to the climate crisis—be a leader in the type of changes required on a global level to avoid catastrophe. In partnership with allied organizations and hand-in-hand with communities, we work to stop the blind advance of fracking and large dams, mega-projects which imply significant emissions of methane, a greenhouse gas 34 times more powerful than carbon dioxide. We also work to raise awareness and educate public policy makers on the importance of controlling short-lived climate pollutants. We seek to protect terrestrial and marine ecosystems that capture carbon emissions—such as coral reefs, mangroves, wetlands and páramos—which, in turn, helps to mitigate climate change. We monitor international climate negotiations, advocate for Latin American nations to have the necessary economic resources to deal with climate change, and work to ensure that climate finance respects human rights. “Although many of the effects of climate change are inevitable, and may already be occurring, the efforts we make to stop the problem and to adapt to it will help future generations, who had nothing to do with causing the problem,” Florencia explains. She shares her message wherever she goes, encouraging others to join the fight. “I refuse to be part of the last generation to enjoy the natural wonders of our planet.”
Read more
Leydy Pech, the guardian of the bees
“They’re part of my very being,” Leydy Araceli Pech Martin says of her bees. She feeds them pumpkin candy, and she identifies with them. Seeing how they organize and work together to produce honey reaffirms her confidence in collective action. In her native town of Ich Eq, a name that in Maya means “Star Eye,” families live in the same way: united and supporting each other. Of all the objectives that Leydy shares with her community, perhaps the most vital is the defense of their territory and traditional ways of life—threatened now by growing deforestation and the toxic contamination of industrial agriculture. The expansion of soy cultivation in Leydy’s town—located in the municipality of Hopelchén, in the Mexican State of Campeche—is killing large areas of tropical forest and indiscriminately spreading toxic pesticides through the land and water. It is harmful to both human health and the natural environment, particularly those ecosystems that depend on bees and, thus, beekeepers. Knocking down obstacles With a sweet look and a soft voice, Leydy is an agile woman. She does many things in a day, dividing her time between beekeeping, housework, caring for her mother and uncle, and keeping an eye on her son Diego Alberto, 17. She also manages the shop of Koolel-Kab (“women who work with bees”), an organization she founded with other women from Hopelchén in 1995. Together they breed and work for the preservation of melipona beecheii, a wild bee species that has been domesticated by the Maya people for hundred of years. Using what the bees produce, the women make and sell honeys, soaps and creams in the organization’s store. For Leydy, dedicating herself to beekeeping, a trade she learned from grandfather, which in the area is done mostly by men, has not been easy. She’s had to break down barriers. “We live in a world where only men have been able to speak and make decisions,” Leydy explained. “I’ve broken with that and they’ve questioned me.” At the beginning, the community underestimated the women’s potential. “They told us we wouldn’t achieve anything,” she said. “But little by little we demonstrated our abilities. The men saw the results of our work and publically recognized that the organization is an example of struggle, and success.” The women of Koolel-Kab work for the recognition of and respect for indigenous rights in the region. Leydy says their struggle began when they realized that other people were making decisions about the territory and natural resources of their town, about job opportunities and quality of life for their youngest members. Mennonites and industrial agribusiness have been cultivating genetically modified soybeans in Hopelchén, leading to mass deforestation and public health risks. The Mexican government authorized the cultivation without consulting affected communities. Although Mexico’s Supreme Court has recognized this human rights violation, the illegal planting of GMO soy has not stopped and the sowing of traditional soy has expanded. In addition, the aerial fumigation of crops is causing a harmful mixture of chemicals to reach houses, water sources, and the flowers the bees rely on. “I cannot sit idly by when I know what is happening,” explained Leydy, with the firmness that characterizes her. “It has become my responsibility. Not doing anything would be like betraying my own identity.” Leydy is motivated by the search for justice. Her organization of Maya women is part of the Collective of Maya Communities of los Chenes, which has presented national and international legal actions to stop the damages of agroindustry. AIDA, together with partner organizations, supports their efforts and has taken the case, on behalf of the communities, before the Inter-American Commission on Human Rights. The strength of unity Leydy is convinced that the strength of the Collective is its unity. Those in the Collective work for the needs of their own communities, but are also in the process of seeing themselves as one—something that applies not only to the people of Campeche, but also to those of the nearby States of Yucatan and Quintana Roo. “The Maya people are many, and everything that we’ve achieved is not for only one person, it is for all.” Leydy shares her leadership and her natural ability for teamwork. Her son, Diego Alberto, is part of that effort. “He’s happy, he understands a lot about bees and has his own projects,” she says. Like Diego Albert, other young members of Leydy’s family are choosing to dedicate themselves to beekeeping. “That tells me I’m doing something right,” she says, proudly.
Read more