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

Topics

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...

Learn More All Projects

Featured Publication

Taking Stock 16

With a feature analysis of off-site transfers to disposal

November 30, 2025 137 pages Pollutants

This edition of Taking Stock brings together data and information on the pollutants reported between 2014 and 2018 by North American industrial facilities to the pollutant release and transfer registers (PRTRs) of the region: Canada’s National Pollutant Release Inventory (NPRI), Mexico’s Registro de Emisiones y Transferencia de Contaminantes (RETC), and the US Toxics Release Inventory (TRI). The objectives of this publication are to improve the awareness and understanding of the sources, types, and handling of industrial pollutants in North America and support decisions relative to pollution prevention and sustainability.

Read More

Taking Stock

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.