UCBearcats1125 Wrote:DrTorch Wrote:UCBearcats1125 Wrote:WASHINGTON - Former Vice President Al Gore says people should see the upcoming movie "The Day After Tomorrow," in which global warming suddenly creates a new ice age that freezes entire cities.
Yeah I read that like 5 times and have no idea how they get to that conclusion...
Basically, the scenario goes that the rapid shift in climate (note thats distinct from temperature) will disturb the polar ice flows which will shift climate zones worldwide before nature can adapt itself, and that could create a new ice age.
The arguement these people put forth is that its not the fact that warming is happening that matters--Climate ALWAYS shifts--their position is that because of anthropogenic warming (caused by human factors, like pollution), the RATE of change will be so rapid that a natural adaptation will be impossible.
One example in this thinking is what it could do to Agriculture worldwide. Soil conditions in the U.S. grain belt (Iowa and the plains states) align perfectly with climate conditions. This makes it possible for the U.S. grain belt to essentially feed the entire world. However, if over the course of 25-30 years, the climate zones shift so that the climate zone of northern Canada is now the climate zone of the grain belt, we have serious problems. Grain shortages will cause food prices to skyrocket around the world. The political-economic fallout of this cannot be underestimated.
Thats just one example of the consequences if these people are right. It won't be that you wake up one day and the world has frozen over. But over time, it will play havoc with our social, political, and economic order.
I don't know if I believe it. Frankly I don't believe there is enough data available to build effective long-term models and make comparisons. If we don't know the rate of warming, its hard to make any judgements.
Its definitely worth more study though.