A global fingerprint of climate change
Parmesan and Yohe analysed species' shifts in timing and range and found a pattern uniquely predicted by 20th-century climate trends, giving very high confidence that climate change is already affecting living systems.
As reported in: Parmesan, Yohe (2003). A globally coherent fingerprint of climate change impacts across natural systems. Nature. doi:10.1038/nature01286
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