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Across 1. (noun, singular, one word) massive contamination 3. (noun, singular, one word) it melts due to climate change 6. (noun, singular, one word) the natural world one lives in 12. (noun, singular, two words) synonym of global warming 13. (noun, singular, one word) release of harmful gas

Down 1. (noun, singular, one word) chemical used to combat insects, bacteria, and viruses that attack plants 2. (adjective, singular, one word) a source that does not run out 3. (noun, singular, three words) a series of policy proposals to combat global warming inspired by Franklin D. Roosevelt's economic policies 4. (noun, plural, one word) a stock of materials 5. (noun, singular, two words) uses strong air flow to generate electricity 7. (noun, singular, two words) electricity harnessed from the sun 8. (adjective, singular, one word) term describing the harnessing of energy from water currents 9. (noun, singular, one word) the harvesting of naturally-grown tree mass on a large scale 10. (noun, singular, one word) reusing materials 11. (noun, singular, one word) a method for getting ferilizer from organic matter