Heavy Lifting - thoughts and web finds by an economist
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Monday, September 11, 2006
From another Nature article:
Extreme changes in the Earth's climate that happened around 3,000 years ago, during which the Sahara Desert became completely arid and the El Nino cycle strengthened, could have kick-started civilizations in some places on Earth, says Nick Brooks of the University of East Anglia in Norwich, UK.From what I have been able to internalize, we think we have good evidence that temps on the earth are and have been increasing over time. There are some who think that fossil fuels are adding/helping that temperature increase over time. There are still others who are convinced that they can regulate/tax the use of fossil fuels (in the countries that can afford to pay for the regulation/taxation) and this will stop the increase in temperatures. I don't think the last hope is realistic although I do think it will be attempted.
However, the evidence that the Sahara wasn't always a desert and the fact that the Grand Canyon exists suggests there have been dramatic changes in the earth's climate long before the tax man and the internal combustion engine.
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