Three countries working together to protect our shared environment

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

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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

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Featured Project

Strengthening Evidence-Based Collaborative Monarch Butterfly Conservation

2025 Active Ecosystems

Monarch butterfly population has experienced a significant decline over the last few decades. While the 2024-2025 wintering season saw an increase from the previous year, this remains one of the lowest recorded population sizes and highlights the ongoing challenges for monarch conservation, as well as the urgent need for coordinated,...

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Monarch Butterfly Conservation

Featured Publication

Vaquita Porpoise

Factual Record Regarding Submission SEM-21-002

March 14, 2025 158 pages Enforcement

This factual record addresses the assertions contained in submission SEM-21-001 (Vaquita Porpoise) concerning alleged failures to effectively enforce the General Wildlife Act (Ley General de Vida Silvestre—LGVS) and its regulation (the “LGVS Regulation”), and various administrative orders aimed at protecting the vaquita (Phocoena sinus), a species that is critically endangered due to the direct impacts of illegally fishing totoaba (Totoaba macdonaldi) in Mexico’s Upper Gulf of California (UGC). In addition to a summary of the response from the Government of Mexico (“the Party”), the factual record presents the information obtained by the Secretariat in the course of its preparation, including information about measures taken by the Party to address the issues raised in the submission.

LGVS Article 55 provides that any import, export, or re-export of specimens, parts, and derivatives of wild species included in the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) must adhere to CITES, the LGVS, and any provisions flowing from them. Article 56 of the LGVS Regulation provides that any import, export, or re-export of biological material from species included in CITES must also adhere to the Convention. Both the vaquita and the totoaba are listed in CITES Appendix I, meaning that international trade in specimens of both species should be subject to particularly strict regulation. The “1975 Totoaba Fishing Ban” was promulgated in view of the declining population of totoaba and the special vulnerability of the species to commercial and sport fishing, given its limited area of distribution. The “2020 Gillnets Order” permanently bans all gillnets within a circumscribed area comprising the Zero Tolerance Area (Z0) and the Vaquita Refuge Area (VRA).

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Vaquita Porpoise

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.