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

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Featured Project

Transforming Recycling and Solid Waste Management in North America

2021 Active Sustainable Living and Economies

Reducing waste and closing material loops help minimize environmental impacts throughout the value chain of resources and products. They also present considerable economic opportunities. Circular economy strategies, including a multitude of recovery options, are estimated to unlock $4.5 trillion in economic growth around the globe. The transition to a circular...

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Solid waste

Featured Publication

Long-term Impact Assessment of the CEC’s Work to Support AirNow-International

January 31, 2022 4 pages Pollutants

AirNow-International (AirNow-I) is a system that allows government agencies and organizations to collect, process, exchange, and communicate air quality observations and forecasts in real-time. With the goal of improving decision-making related to public health, AirNow-I also contributes to increased public engagement on air quality issues. Between 2010 and 2015, the Commission for Environmental Cooperation (CEC) invested C$452,000 to support and improve the sharing and comparability of ambient air quality data at the North American level and support the integration of Mexico’s regional air quality monitoring systems into AirNow-I.

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CEC Publications

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.