Understanding the Issues
Despite the assertion of skeptics, there is overwhelming evidence that climate change is happening and that it is man-made. America’s leading scientific bodies, from the National Academy of Sciences to the American Association for the Advancement of Science, maintain that human activities – particularly the burning of fossil fuels – are the primary cause for global warming.
Economists predict that climate change will create global instability as resources become scarcer and competition greater. The Stern Report estimates that enacting federal legislation to reduce greenhouse gas emissions will cost 1-2% of the global GDP. If the worst impacts of climate change are not mitigated, however, the total cost of global warming in the United States could be as high as 3.6 percent of GDP by 2100.
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