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Old 22nd-July-2008, 06:11 PM
JustTheFacts JustTheFacts is offline
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Quote:
Originally Posted by Paradox View Post
The story sheds light on a growing epidemic, crop failure and famine. Climate change will become a major factor if the Sun continues its rare level of inactivity and the Earth continues cooling as a result. Warming results in increased crop yield due to longer growing seasons and more land to cultivate...cooling has the opposite effect. There is one thing constant throughout history -- the climate is always changing.

We're going to hear much more about this in the future...
Fair enough, but I wouldn't use Zimbabwe as a sign of crop failure due to climatic cooling - unless you're looking to discredit yourself. If you want to isolate climate as the cause of crop failure, then you ought to stick to places where farming techniques have been stable over tens of years (i.e., first-world countries). In these areas, a crop failure would more likely be due to a change in climate (or a freak storm) rather than politics or poor farming practices. That being said, how would you define the dust bowl today? Would another dust bowl be strong evidence for climate change? I'm not sure about that. Perhaps you should think of a better predictor than crop yield.

Also, increasing CO2 levels tend to increase crop yield. So if the climate is cooliing then the reduction in yield do to cooling would probably be offset by the increase in yield due to CO2.
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