Acid rain, rain that contains harmful chemicals, conservation, the protection and preservation of natural environments and resources, ecosystem, the complex system of relationships between living things and their environment, carbon footprint, a measurement of the amount of carbon-dioxide a person adds to the atmosphere, ban, to not allow something, clear cut, to destroy a forest by cutting down all the trees, carpool, to share a car instead of driving one alone, climate change, long-term global changes in temperature, wind patterns, rainfall etc

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