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poor health resulting from extreme heat
heat-related illness
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the amount of carbon dioxide released into the atmosphere
carbon footprint
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an increase in the average temperature of the earth's atmosphere
global warming
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a gas or other substance which is sent out into the air
emission
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a gas in the atmosphere that traps heat above the earth
greenhouse gas
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a long-term change in the earth's weather due to changes in the atmosphere
climate change
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a stable ecosystem in which a large number of species live together
ecological balance
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an illness that can be passed from one person to another, especially through the air people breathe
infectious disease
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