Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The global carbon cycle refers to the movement of carbon between the atmosphere, oceans, land, and living organisms. It involves processes such as photosynthesis, respiration, combustion, and decomposition.
The greenhouse effect is the trapping of heat in the Earth's atmosphere due to certain gases (such as carbon dioxide) that act like a blanket. This leads to an increase in global temperatures.
Fossil fuels are energy sources formed from ancient organic matter (mostly plants) that have been transformed over millions of years. They release large amounts of carbon dioxide when burned.
Ocean acidification occurs when excess carbon dioxide from the atmosphere dissolves into seawater, leading to a decrease in pH levels. This can harm marine life and disrupt ecosystems.