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Archive for February 18th, 2009

PSDBAnyone who imagines that with climate change we will simply shift agriculture towards the poles probably does not even have house plants, much less a garden, and certainly knows little or nothing about agriculture or climate change.

In an earlier post I discussed some of the impacts on existing agriculture as Understanding why climate change means global famine”. Now I’d like to discuss a couple of aspects of one of the stock answers “we’ll just move our food production north.”

The reason this will not work is shown very simply with a map.

source US Dept of Agriculture
source US Dept of Agriculture

Begining with the Southern Hemisphere and the obvious, there is less land area as you move towards the pole. South America narrows rapidly, Africa less rapidly but it still does, and Australia simply ends; there just isn’t the land available to sustain anything close to current levels of food production. (more…)

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