Earth Day Crossword

2. An alternative gaseous fuel source that produces only water and no pollution when it combusts.
7. A classification of vehicle whose only that does not emit exhaust gas or other pollutants from the onboard source of power.
10. An annual environment-themed observation held on April 22 each year.
11. A portmanteau describing the activity of picking up trash while jogging.
12. The planned management of a natural resource to prevent exploitation, destruction, or neglect.
13. Nature's terrestrial oxygen generators.
14. An apparatus or facility with one or more electrical outlets for recharging the batteries of electric vehicles.

1. A financial model of production and consumption, which involves sharing, leasing, reusing, repairing, refurbishing and recycling existing materials and products as long as possible.
3. The first R of the 3R-V (_____, reuse, recycle, revalue).
4. A set of atmospheric compounds in Earth's atmosphere that trap heat.
5. Like gasoline and natural gas, the term for hydrocarbon-containing substances formed underground from the remains of dead plants and animals.
6. A situation in which urgent action is required to reduce or halt climate change and avoid potentially irreversible environmental damage resulting from it. Oxford's 2019 word of the year.
8. The concept of meeting our own needs without compromising the ability of future generations to meet their own needs.
9. A process of capturing and storing atmospheric carbon dioxide.