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Each year, the federal government spends about $1 billion to support Arctic and Antarctic research by thousands of scientists like Dr. Smith and his team. The agency officials who receive that money from Congress, including the directors of the National Science Foundation, NASA and the National Oceanic and Atmospheric Administration, say the research is essential for understanding the changes that will affect the world’s population and economies for more than a century.
But the research is under increasing fire by some Republican leaders in Congress, who deny or question the scientific consensus that human activities contribute to climate change.
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