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Pastimes : The New Qualcomm - write what you like thread. -- Ignore unavailable to you. Want to Upgrade?

To: Maurice Winn who wrote (7098)	3/4/2005 4:28:38 PM
From: Snowshoe	Read Replies (1) \| Respond to of 12235

>>the survivors will be using a LOT less hydrocarbon anyway<< Mq, yesterday in the dentist's office I scanned this interesting article in the March 2005 Scientific American that indirectly supports what you just said. According to the author, Antarctic ice cores show that global CO2 levels fell after bubonic plague epidemics hit around the years 540 and 1350, and also after 1492 when old world diseases hit North America. The reason is that so many people died, and their fields reverted to forest that sucked up the carbon. Note: You have to pay to read the whole article at the following link. I picked up the magazine and will read it in more detail this weekend... How Did Humans First Alter Global Climate? A bold new hypothesis suggests that our ancestors' farming practices kicked off global warming thousands of years before we started burning coal and driving cars. By William F. Ruddiman sciam.com

To: Maurice Winn who wrote (7098)	3/4/2005 6:12:49 PM
From: A.J. Mullen	Read Replies (1) \| Respond to of 12235

Just enough to avoid an ice age, but temperatures are currently rising, and what is just enough? Increased CO2 might disturb things enough to to precipitate an ice age. As an engineer you know about quasi-stable equilibria and that one doesn't always end up in the direction of the first perturbation. I hope your summer's going well, and that your unusual weather has abated. I came back to more unusual weather in California, but I'm not claiming either was necessarily due to global change. Ashley