drought, no rain, flood, lots of water in an area, global warming, increase in earth's temperature, greenhouse effect, heat that cannot escape from atmosphere, melt, ice turns into water, nuclear disaster, accident with nuclear power, oil spill, when oil comes out of its container, ozone layer, what protects earth from the sun, pollution, making air , water , land worse with chemicals, recycle, give a new use to plastic , glass , paper, save, preserve, waste, material that is not wanted

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