A gradual increase in the overall temperature of the earth's atmosphere.
global warming
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15
Energy from a source that is not depleted when used, such as wind or solar power.
renewable energy
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It's a process that occurs when gases in Earth's atmosphere trap the Sun's heat.
greenhouse effect
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A change in global or regional climate patterns.
climate change
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Chemical waste material capable of causing death or injury to life.
toxic waste
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boom
Lose 50 points!
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seesaw
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shark
Other team loses 20 points!
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lifesaver
Give 20 points!
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15
Economic development that is conducted without depletion of natural resources.
sustainable development
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15
The amount of carbon dioxide released into the atmosphere as a result of the activities of a particular individual, organization, or community.
carbon footprint
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15
A layer in the earth's stratosphere at an altitude of about 10 km (6.2 miles) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.