As a greenhouse gas, carbon dioxide (CO2) traps heat in the Earth’s atmosphere. Of all the greenhouse gases, CO2 is the biggest contributor to climate change. CO2 enters the atmosphere through the burning of fossil fuels and other materials and through certain chemical reactions.

The Home Depot has pledged to reduce CO2 emissions 50% by 2035.

The Home Depot tracks carbon emissions using industry-standard metrics

Scope 1: Direct emissions from combustible sources and refrigerants
Scope 2: Indirect emissions from purchasing electricity
Scope 3: Emissions from upstream transportation and distribution of freight

Want to do something about climate change, but not sure where to start? Begin by measuring your household carbon footprint.