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Hope in the hills for tundra?

Will global warming cause northern forests to spread into arctic tundra? A study of black spruce suggests that the answer is complex and varies according to latitude and altitude.

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Figure 1: Transition zone: krummholz vegetation, a stunted form of black spruce trees.



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Moore, P. Hope in the hills for tundra?. Nature 432, 159–160 (2004).

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