hi madmix
quote:
"Why should global warming result in food and water
shortages.
Given predictions of rising sea levels and rising temperatures,
it stands to reason that the evaporation from a larger expanse
of water will also increase, therefore leading to an increased
rate of precipitation.
So we have increased precipitation and increased temperature
levels, which should result in increased levels of food production
due to more favorable and widespread growing conditions."
Your absolutely right "with rising sea levels and rising temperatures it stands to reason that the evaporation from a larger expanse of water will also increase, therefore leading to an increased rate of precipitation.So we have increased precipitation and increased temperature levels, (this is the bit i dispute)---> which should result in increased levels of food production due to more favorable and widespread growing conditions."
I don't think you can unequivocally say higher temps and rain are more favorable growing conditions. How many wheat farmers are there is Darwin? Temperate crops such as wheat simply can't survive in a tropical climate. Not all crops are suited to higher temps and higher precipitation. Furthermore though higher temps do mean higher precipitation it usually also means a higher concentration of precipitation in short periods (the wet season in the tropics) which means more floods and more violent whether. Again I'm no expert and in the movie they go into more depth explaining this. I wasn't trying to have a go at people, the original point i was trying to make was go see the movie with an open mind (instead of rubbishing it without seeing it) it addresses a lot of things people have bought up in the post.
Cheers Chris