Across
- 4. Warming The gradual increase in Earth's overall atmospheric temperature
- 5. process where gases in Earth's atmosphere trap heat from the Sun.
Down
- 1. Energy sources like coal, oil, and natural gas formed from preserved organic remains.
- 2. A potent greenhouse gas often associated with livestock and farming.
- 3. A primary greenhouse gas released by respiration and the combustion of fossil fuels.