Three countries working together to protect our shared environment

International collaboration between Canada, Mexico and the United States on environmental issues of common interest

In the Spotlight

Our Impact

Explore how the CEC’s work over the years has delivered tangible environmental and social outcomes across North America — from scientific studies that guided environmental standards, regulations and policies in Canada, Mexico and the United-States, to trinational conservation strategies, community grants and geospatial mapping projects. Whether you’re a policymaker, conservation expert, researcher or simply interested in North American environmental cooperation, this page offers a comprehensive overview of not only what the CEC has achieved — but how and why those efforts have unfolded.

Our Impact

Topics

Featured Project

Scoping: Uptake of Best Practices for Environmentally Sound Management of Spent Lead-Acid Batteries

2024 Active Sustainable Living and Economies

Spent lead-acid batteries (SLABs) are one of the largest sources of lead for industrial reuse in North America, but their recycling can release toxic emissions if not managed properly. Previous work by the CEC has helped identify levels of environmental and health protection, as well as regulatory frameworks across the...

Learn More All Projects

Featured Publication

City Park Project

Factual Record Regarding Submission SEM-19-002

November 30, 2025 76 pages Enforcement

On 16 April 2019, the organization Acción Colectiva Socioambiental, A.C. (hereafter the “Submitter”) filed a submission with the Secretariat, in accordance with the provisions of NAAEC Article 14(1). The Submitter asserts that Mexico is failing to effectively enforce its environmental law in relation to the City Park Project, in the City of León, Guanajuato, Mexico. At the time this submission was filed, the City Park Project was under construction.

The Submitter asserts that Mexico is failing to effectively enforce provisions of General Act on Ecological Balance and Environmental Protection (Ley General del Equilibrio Ecológico y la Protección al Ambiente—LGEEPA); the LGEEPA Regulations on Environmental Impact Assessment (Reglamento de la LGEEPA en Materia de Evaluación de Impacto Ambiental—REIA); the General Wildlife Act (Ley General de Vida Silvestre—LGVS); the Internal Regulations of the Ministry of the Environment and Natural Resources (Reglamento Interior de la Secretaría de Medio Ambiente y Recursos Naturales—RI-Semarnat); the Environmental Protection and Preservation Act of the State of Guanajuato (Ley para la Protección y Preservación del Ambiente del estado de Guanajuato—LPPAEG); the LPPAEG Regulations on Environmental Impact Assessment (Reglamento de la LPPAEG en Materia de Evaluación del Impacto Ambiental—REIA-Guanajuato); the Environmental Management Bylaw of the City of León, Guanajuato (Reglamento para la Gestión Ambiental del Municipio de León, Guanajuato—RGA-León or the “Municipal Bylaw”); and Official Mexican Standard NOM-059-Semarnat-2010, Environmental protection—Native flora and fauna species of Mexico-Risk categories and specifications for species inclusion, exclusion
or amendments—List of species at risk (NOM-059).

 

Read More View Top 50 Publications

City Park Project Factual Record Cover

What We Do

We conduct research, provide tools and training, and provide a unique space for decision-makers and the public to engage on environmental policy issues affecting the North American region.