CO2, or carbon dioxide, is a greenhouse gas that is released into the atmosphere through human activities such as burning fossil fuels and deforestation. It contributes to global warming by trapping heat in the Earth's atmosphere.
The process by which certain gases, including CO2, trap heat in the Earth's atmosphere and contribute to global warming.
The total amount of greenhouse gases emitted directly or indirectly by an individual, organization, or product.
Non-renewable energy sources formed from ancient plants and animals that release CO2 when burned for energy.