The 4 D's of Pellagra and Progress.

254 , 257 Agriculture in general and meat production (such as methane emissions) specifically are a highly significant driver of the ‘Anthropocene’ as are the dramatic increases in population. 258 - 267 Climate has had major influences on our diet and evolution and, in turn, has homeostatic mechanisms to control the amount of CO 2 in the atmosphere, though how robust they are veers between the optimistic ‘Gaia’ and

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