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The U.S. relies on 42 Earth-observing satellites to monitor air pollution, plant cover, and global warming trends, but the future of these instruments is in peril. The number of working satellite sensors will decline 40% by 2010, and the next generation of sensors won't be sophisticated enough to address pending environmental threats. Blame shifting federal priorities, as most of NASA's budget is slated for the International Space Station and President George W. Bush's plans to revisit the moon and move on to Mars. Progress in space exploration is certainly of value but shouldn't protection of this heavenly body take precedence?
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