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First the link to this week’s complete list as HTML and as PDF.
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Up to now I have always followed the school considering a migration of the Bantu Eastern Stream north and out of the rain forest the more likely scenario. With Fortes-Lima et al. this hypothesis is finally falsified. This makes Wotzka’s new results about the proven feasibility of millet growing in forest landscapes all the more important and relevant.
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Contrary to their title and abstract Gottlieb & Mankin say absolutely nothing about human influence. What they demonstrate is a highly nonlinear relationship between snow retention and temperature making the effect of slight temperature changes highly dependent on the absolute temperature where it occurs. If you assume temperature change to be anthropogenic, then that assumption will naturally carry over to the snow thickness. But that’s all there is. The assumption is not tested or discussed, just made.
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