Written by the Fiveable Content Team โข Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated August 2025
Definition
Carbon dioxide (CO2) is a colorless gas produced by burning fossil fuels such as coal, oil, and natural gas. It is one of the primary greenhouse gases responsible for global warming.