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

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

Proceedings of the Trinational Monarch Science Meeting

Moving Forward on the Conservation of the Monarch Butterfly in North America

March 14, 2025 34 pages Ecosystems

As part of the Commission for Environmental Cooperation’s (CEC) project; Science for Monarch Butterfly and Pollinator Conservation, this meeting convened government experts, researchers and key stakeholders from Canada, Mexico and the United States to share novel research and scientific findings on the monarch butterfly, establish further collaborations for data sharing, and identify trinational research and monitoring priorities to support monarch butterfly and pollinator research in North America.

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Cover for Trinational Monarch Science Meeting

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.