Global Warming or Global Cooling--Who Knows for Sure?
Published by Thriftbooks.com User , 17 years ago
What is the future of our climate? Global Warming? Ice Age? Both? Neither? No one can know the future. We can speculate. This thoughtful book presents the idea that for the past 2 million years, our planet has experienced a repeating cycle of 90,000 years of glaciated climate followed by 10,000 years of temperate climate, and that the glaciated climate begins when the atmospheric carbon dioxide reaches a certain level...and we've already passed that level!
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