http://www.youtube.com/watch?v=lTu_afGzVJg
in his talk he discussesabout how its getting hotter every year and how this heat might affect the growth of the food that is grown. First of I want to point out that the earths temperature changes all the time, the only reason we see it get hotter is because now we have technology to actually measure the temperature unlike back in the day were we werent sure what the difference was. Second he didnt really explain how it might affect it.
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