Smog - A thick dirty cloud at ground level caused by pollutants reaching to sunlight., Compost - To put organic waste like vegetable peels, uneaten food, grass clippings and leaves into a large container that breaks it down into healthy soil., Toxic - deadly or poisonous (of waste, chemicals, pollutants, etc.), Donation - To give money or goods to an organization you want to help or support, Zero-emissions - Releasing no greenhouse gases like carbon-dioxide or methane., Endangered species - Animals or plants which can become extinct or disappear in the near future., Drought - Lack of rain., Global warming - Higher air and sea temperatures partly caused by man-made increases in greenhouse-gas levels., Litter - Rubbish such as paper, cans...left lying in an open public space., Greenhouse effect - Phenomenon in the atmosphere that stops heat from escaping into space., Manufacture - Make something on a large scale using machinery., Habitat - The place in which a species normally lives., Waste - Unwanted or unusable material, substances or by-products., Fertilizer - A chemical that's sprayed on crops to stoy insects from destroyin them., Ecosystem - Natural home or environment of an animal, plant or other organism., Pollution - The contamination of the environment, esp. by industril waste products and chemicals., Bin - Containers you use to recycle rubbish., Reduce - To use less or make something smaller., Climate - The weather conditions prevailing in an area in general or over a long period., Renewable - Forms of energy that can be replaced naturally, such as hydro-electricity, solar energy and wind power.,

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