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Study implicates global warming in falling population of birds in Death Valley NP

As the Mojave Desert in California and Nevada becomes hotter and drier, birds need more water to stay cool. Species that can’t get enough water are rapidly declining in this iconic desert ecosystem, ecologists reported recently in the Proceedings of the National Academy of Sciences.

Some birds may die solely from overheating, but a more serious problem facing most species is how much time they must spend trying to cool down. This decreases their time spent breeding, leading to smaller population sizes.

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