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Drawdown Glossary

Carbon Dioxide (CO2)

Carbon dioxide is the most common greenhouse gas emitted by human activities. According to the U.S. Environmental Protection Agency, carbon dioxide comprised about 81% of all U.S. greenhouse gas emissions from human activities in 2018.

Carbon Dioxide Equivalent (Co2e)

This term creates a standardized way to describe the global warming potential of any greenhouse gas. Emissions are converted into the amount of carbon dioxide that would have the same global warming impact.

Greenhouse Gases

This refers to a suite of gases that trap heat in the Earth’s atmosphere, including: carbon dioxide, methane, nitrous oxide and fluorinated gases. Some emissions occur naturally. However, human activities, such as the burning of fossil fuels, have increased emissions and fueled climate change.

Drawdown

Drawdown describes a point in the future when global levels of greenhouse gases in the atmosphere stop climbing and start to steadily decline. This concept was popularized by Project Drawdown. Drawdown Georgia provides a state-specific road map for how Georgia can do its part.

Megaton (Mt)

A megaton is a million metric tons. Drawdown Georgia displays CO2e emissions in this unit.

Net Zero Emissions

This refers to a point in the future when the amount of greenhouse gases emitted by human activities is zeroed out by the amount of emissions removed from the atmosphere by natural sinks or carbon-removal technologies

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