Measuring the value that US residents place on clean water

A new special edition of the Proceedings of the National Academy of Sciences (PNAS) focuses on helping federal regulators measure the value that U.S. residents place on clean water, just months before the Supreme Court is ...

Report: Climate change means less snow for Yellowstone

Yellowstone National Park visitors hoping to see its world-renowned geysers, wolves and bears can expect warmer temperatures and less snow as climate change alters the park's environment, according to a report by U.S. and ...

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