♻️ap environmental science review

Carbon Dioxide

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 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.