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Global Warming
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Presentation Transcript
Reason one • Migrating animals head north earlier because spring temperatures are arriving weeks earlier in the year. Plants blossom earlier too. And both plant and animal species are expanding their habitats northward because of the generally warmer temperatures. Arctic sea ice is thinning drastically.
Reason 2 • But studies of past climate changes show that the planet can switch from ice age to tropical in a few decades. • If we want to avert wrenching changes that would come with an accelerated global warming, we should do all we could to move from fossil fuels to cleaner, less-damaging energy sources.
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