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

Scoping: Uptake of Best Practices for Environmentally Sound Management of Spent Lead-Acid Batteries

2024 Active Sustainable Living and Economies

Spent lead-acid batteries (SLABs) are one of the largest sources of lead for industrial reuse in North America, but their recycling can release toxic emissions if not managed properly. Previous work by the CEC has helped identify levels of environmental and health protection, as well as regulatory frameworks across the...

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Featured Publication

CEC’s Work on Migratory Bird Conservation (2015–2018)

Executive Summary — Long-term Impact Assessment

November 30, 2025 7 pages Climate Change Ecosystems

Between 2015 and 2019, the Commission for Environmental Cooperation (CEC) implemented two projects under its strategic pillar of Sustainable  communities and Ecosystems, included in CEC Strategic Plan 2015–2020 (CEC 2015). The project Arctic Migratory Bird Initiative (AMBI): The Americas’ Flyway Action Plan (2015–2016) (CEC 2015a, 2016 and 2017) was developed in response to the need to strengthen participation and collaboration among communities in Canada, Mexico and the United States for the conservation of shorebirds, primarily the semi-palmated sandpiper (Calidris pusilla) and the red knot (Calidris canutus, subspecies rufa and roselaari), selected for having a wide migratory and reproductive distribution and as indicators for other coexisting species.

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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.