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

Chiapa de Corzo Litter Snapshot

March 14, 2025 5 pages Ecosystems

The City of Chiapa de Corzo (Chiapas, Mexico) is located on the shore of the Grijalva River, upstream of the Sumidero Canyon National Park. The Chiquito River meanders through Chiapa de Corzo before it flows into the Grijalva River. In 2023, litter traps were installed and maintained at three locations in the Chiquito River over a period of five months. These in-stream devices intercepted floating litter and prevented it from flowing farther downstream. The goal? To stop litter in its tracks and raise public awareness about the flow of litter downstream to the ocean.

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Marine Litter

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.