Greenhouse Gases (GHG) Emissions and Criteria Air Contaminants (CAC) Calculator (Environment and Climate Change Canada):

A tool that helps users estimate GHG and CAC emission reductions from various environmentally sound actions undertaken during the lifespan of their projects.

EPA Greenhouse Gas Equivalencies Calculator

This calculator can be useful in communicating your greenhouse gas reduction strategy, reduction targets, or other initiatives aimed at reducing greenhouse gas emissions.

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