On November 27, 2023 Samuel Almeida da Silva filed a preventive Popular Action against the Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) regarding the request for an environmental license to explore the FZA-M-59 oil block, located at the mouth of the Amazon River, off the coast of the state of Amapá, requested by Petrobras SA. It is stated that the company's request was denied due to several inconsistencies and that the licensing process documents indicate the possibility that a potential oil spill could reach the coast of eight countries, in addition to two French territories. It argues that, beyond the specific impacts of the production and transportation project, the installation of the oil and gas industry would promote an extensive chain of related ventures. It is alleged that exploration at the mouth of the Amazon River would trigger the drilling of more than 40 blocks off the coast of the North and Northeast regions of the country, which would go against global ambitions to reduce the use of fossil fuels. There is a global effort to modify the energy matrix towards sources other than oil and coal, which are the main causes of high greenhouse gas (GHG) emissions. Given this scenario, the exploration of oil blocks puts the local ecosystem and climate balance at risk. The author argues that denying the environmental license for the project is a way to protect the collective right to an ecologically balanced environment, fulfilling article 225 of the Brazilian Federal Constitution of 1988. The author requests the invalidation of any license that authorizes oil exploration in the Amazon River estuary. 

On January 2nd, IBAMA filed its defense alleging the initial petition was flawed due to a lack of specification of the facts and legal basis for the request, and that there was no act to be annulled, as no activity is being carried out in the area of interest of the lawsuit. Regarding the FZA-M-59 exploration block, it alleged that the environmental license was denied and that an appeal is under review. It requested, preliminarily, the dismissal of the case without prejudice. On the merits, it requested the complete dismissal of the claims. 

On June 5, 2025, a judgment was issued dismissing the initial petition and declaring the case closed without prejudice. The court held that there was no administrative act to be annulled or invalidated, since the plaintiff was seeking the invalidation of an environmental license that had not even been issued or, potentially, of a license that may be issued in the future.

Due to the nature of the action, the case was submitted for mandatory review, and the Court unanimously decided to deny the appeal, on the grounds that the judgment rendered is duly reasoned.

In March 2026, the case was definitively closed.

Samuel Almeida da Silva vs. IBAMA (Preventive invalidation of licenses for oil exploration at the mouth of the Amazon River)

<p>This entry was provided by the Sabin Center for Climate Change Law. Please see the terms of use for citation and licensing of third party data.</p>

Samuel Almeida da Silva vs. IBAMA (Preventive invalidation of licenses for oil exploration at the mouth of the Amazon River) - judgment

Filed

The Climate Litigation Database

Find climate change litigation data and indicators for {text}.

{text} litigation

Sabin Center for Climate Change Law provides Climate Litigation Database, a comprehensive database of US and Global climate change caselaw

Quickly and easily search through the complete text of thousands of climate change law and policy documents from every country.

Search the Climate Litigation Database

An aim to achieve a quantifiable outcome within a given time-frame, set by an institution such as a national government.

Policy instruments are techniques or tools used by governing authorities to promote certain policies in order to achieve predetermined goals. Put simply, instruments are how a government tries to achieve its goals, with this taxonomy being focused on national policy instruments.

Risk is the potential for adverse consequences resulting from the dynamic interplay between (climate-related) hazards, exposure, and vulnerability of affected human or ecological systems.

Groups  of people who are adversely affected by climate change or the response to it

A set of principles, processes, and practices that build economic and political power to shift from an extractive economy to a regenerative economy.

Justice is the ethical and political framework that addresses fairness, including issues of responsibility, rights, and structural inequity.

Renewable energy means all forms of energy produced from renewable sources in a sustainable manner.

Fossil fuel is a generic term for non-renewable energy sources such as coal, fossil gas, and oil (including crude oil, and petroleum products), that can be used for electricity and heat generation. Fossil fuels are hydrocarbons formed from pressurised and heated organic material buried over millions of years.

Molecules in the atmosphere that play a key role in the greenhouse effect by trapping heat radiating from Earth’s surface.

Area of the economy in which actors engage in identical or related activities.

In human systems, the process of adjustment to actual or expected climate change and its effects, in order to moderate harm, increase resilience or exploit beneficial opportunities. In natural systems, the process of adjustment to actual climate change and its effects; human intervention may facilitate adjustment to expected climate change and its effects.

The management and allocation of funds, assets and investments to meet various objectives

Actions and measures to adapt and increase resilience of societies and the economy to climate change.

Oil is a combustible liquid fossil fuel composed mainly of hydrocarbons, occurring as crude oil and refined into petroleum products such as petrol, diesel and kerosene.

Activities of industries that extract natural resources, such as mining, oil, and gas, for commercial use.

Activities of businesses and institutions that provide financial services and products to individuals and organisations.

On November 27, 2023 Samuel Almeida da Silva filed a preventive Popular Action against the Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) regarding the request for an environmental license to explore the FZA-M-59 oil block, located at the mouth of the Amazon River, off the coast of the state of Amapá, requested by Petrobras SA. It is stated that the company's request was denied due to several inconsistencies and that the licensing process documents indicate the possibility that a potential oil spill could reach the coast of eight countries, in addition to two French territories. It argues that, beyond the specific impacts of the production and transportation project, the installation of the oil and gas industry would promote an extensive chain of related ventures. It is alleged that exploration at the mouth of the Amazon River would trigger the drilling of more than 40 blocks off the coast of the North and Northeast regions of the country, which would go against global ambitions to reduce the use of fossil fuels. There is a global effort to modify the energy matrix towards sources other than oil and coal, which are the main causes of high greenhouse gas (GHG) emissions. Given this scenario, the exploration of oil blocks puts the local ecosystem and climate balance at risk. The author argues that denying the environmental license for the project is a way to protect the collective right to an ecologically balanced environment, fulfilling article 225 of the Brazilian Federal Constitution of 1988. The author requests the invalidation of any license that authorizes oil exploration in the Amazon River estuary. 

On January 2nd, IBAMA filed its defense alleging the initial petition was flawed due to a lack of specification of the facts and legal basis for the request, and that there was no act to be annulled, as no activity is being carried out in the area of interest of the lawsuit. Regarding the FZA-M-59 exploration block, it alleged that the environmental license was denied and that an appeal is under review. It requested, preliminarily, the dismissal of the case without prejudice. On the merits, it requested the complete dismissal of the claims. 

On June 5, 2025, a judgment was issued dismissing the initial petition and declaring the case closed without prejudice. The court held that there was no administrative act to be annulled or invalidated, since the plaintiff was seeking the invalidation of an environmental license that had not even been issued or, potentially, of a license that may be issued in the future.

Due to the nature of the action, the case was submitted for mandatory review, and the Court unanimously decided to deny the appeal, on the grounds that the judgment rendered is duly reasoned.

Samuel Almeida da Silva vs. IBAMA (Preventive invalidation of licenses for oil exploration at the mouth of the Amazon River) - judgment

Fossil fuel

Economic sector

Adaptation/resilience