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Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Hawkmoon who wrote (36161)	12/6/2012 12:42:43 PM
From: Wharf Rat	Read Replies (2) \| Respond to of 86356

"But the MISSED CONCLUSION is that 7,000 years ago, only 4,000 years out of our most recent glaciation, the earth was warmer," No; the wrong conclusion is that it was warmer 7000 years ago, cuz it wasn't. Another conclusion, maybe correct, maybe wrong, is that the Anthropocene began when Ruddman says it does... The early anthropocene hypothesis (sometimes called Early Anthropogenic) is a theory proposed by William Ruddiman. It posits that the Anthropocene era, as some scientists call the most recent period in the Earth's history when the activities of the human race first began to have a significant global impact on the Earth's climate and ecosystems, did not begin in the eighteenth century with advent of coal-burning factories and power plants of the industrial era, as was commonly assumed, but dates back to 8,000 years ago, triggered by intense farming activities of our early agrarian ancestors. It was at that time that atmospheric greenhouse gas concentrations stopped following the periodic pattern of rises and falls that had accurately characterized their past long-term behavior, a pattern which is explained by natural variations in the Earth's orbit known as Milankovitch cycles. In his overdue-glaciation hypothesis Ruddiman claims that an incipient ice age would probably have begun several thousand years ago, but the arrival of that scheduled ice age was forestalled by intense farming and deforestation by early farmers that began raising the level of greenhouse gases eight thousand years ago. en.wikipedia.org "it's pretty evident that the planet undergoes dramatic temperature variations from time to time, and human interference has had nothing to do with it." No, it's not evident at all. That is pure bullshit. Climate changes from time to time, and man had nothing to do with it until he appeared on the planet. Prior to that, it was asteroids, volcanic eruptions and lava flows, orbital positioning, etc. We've taken their place in our attempt to recreate the Carboniferous Period, dumping 400 + days worth of sequestered carbon and/or ancient sunlight back into circulation every day. What is also evident is that we are putting a lot of carbon in the air, and carbon in the air absorbs heat. It's also evident that a bunch of people are ignoring actual science and observations of the natural world around them in an effort to avoid inconvenient truths.