Across
- 1. Element in coal causing respiratory illness.
- 3. Long-term shifts in temperature and weather.
- 4. Visual pollutant from burning firewood.
- 6. Greenhouse gases act like this around Earth.
- 7. Nitrogen _____ released by natural gas exhaust.
- 8. Wildlife often colliding with wind turbine blades.
- 11. Type of pollution produced by windmills.
- 12. Potent greenhouse gas from agriculture.
Down
- 1. Accidental release of oil into water bodies.
- 2. Global _____ caused by greenhouse gases.
- 5. Another toxic metal in burned biomass ash.
- 6. Another animal threatened by wind turbines.
- 7. Level of this decreases in water during oil spills.
- 9. Population severely impacted by hydropower dams.
- 10. Toxic metal found in biomass ash.