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

Air Quality Improvement for Environmental Justice

2022 Active Pollutants

Black carbon (BC) or “soot” ─a component of fine particulate matter (PM)─ is an important air contaminant that not only affects public health but also our climate. Our countries’ systems for monitoring air pollution have limited coverage, with millions of people across North America living in communities that have no...

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Air Quality Improvement

Featured Publication

Compilation of Engagement with Indigenous Communities and Experts Associated with TEK in the United States

October 24, 2022 76 pages Ecosystems

The purpose of this Compilation of Engagement with Indigenous Communities and Experts Associated with TEK in the United States is to assist the Commission for Environmental Cooperation (CEC) and other partners engaging in work that involves TEK. This paper provides an inventory of existing frameworks in the United States that provide mechanisms for the voluntary engagement of indigenous communities and Traditional Ecological Knowledge (TEK) experts.

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CEC Publication Cover

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.