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

International Monarch Monitoring Blitz

Every Observation Matters!

The International Monarch Monitoring Blitz is back for its 10th anniversary! From 31 July to 9 August 2026, join the celebration and help search for monarch butterflies and milkweed plants in your area.

International Monarch Monitoring Blitz

Monarch Monitoring Blitz

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Featured Project

Tracking Pollutant Releases and Transfers in North America

Initiative Active Pollutants

The CEC's North American Pollutant Release and Transfer Register (NAPRTR) Initiative promotes public access to data and information reported by industrial facilities in North America, in order to improve understanding of the sources and management of pollutants of common concern across the region and support decision-making relative to pollution prevention...

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Nuclear power plant - AirNow

Featured Publication

North American Updates on Blue Carbon Science, Conservation and Collaboration

Meeting summary

June 4, 2021 24 pages Ecosystems

In 2020, the Commission for Environmental Cooperation (CEC) organized a series of activities on blue carbon as part of its 2019–2020 project, “Strengthening Adaptation Capacity in Marine Protected Areas,” as summarized in this report. Building upon previous efforts on blue carbon, the CEC worked to convene a meeting of North American blue carbon practitioners, update its map of North American blue carbon habitats, and explore opportunities for the three countries to collaborate to advance blue carbon science, conservation and restoration.

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CEC Publication

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.