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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: Bread Upon The Water who wrote (25198)	9/8/2009 7:41:18 PM
From: Maurice Winn	1 Recommendation Respond to of 36918

The main tipping point we need to worry about is the process leading to tipping back into glaciation. We can wait until the water rises because even The Greenhouse Effect doomsters' models say only about 10cm to 40cm with extremists at 1 metre sea level rise over 100 years will occur. That is so slow and so small that it's ridiculous to even slightly worry about it. Even 10 metres over 100 years would be no big deal. People could just start planning for it now and build things in the flood zone which have economic lives of less than the time remaining. Things they want to last for 100 years can be built 20 metres above sea level. The reason to build things that far above sea level is not because of global warming, but because of the certainty of tsunamis from bolides, earthquakes, volcanoes, landslides after which the water gets deeper in seconds, not centuries. Global warming is a good thing if it gets people to move uphill towards greater safety from bolides over the Pacific Ocean. The reason for the "tipping points" in CO2 is because that way they can claim that terrible things will happen in a hurry. They need things going bad quickly to get people to panic, get in crisis mode, hand over loads of OPM and do as they are told such as buying a General Motors electric car. In my model of quarter of a century ago, there are tipping points and they occur at the end of each glaciation and the beginning of the trend towards the next. At the end of glaciation, snow cover is at a peak, and chlorophyll covers the remaining land, warming gets under way because the plant covered deserts are no longer reflecting light and cloud cover starts to dwindle, letting in more light. The tipping point has been reached. The chlorophyll chases the snow back towards the poles, regreening the earth, absorbing more light, reducing reflection. The oceans also absorb a lot of heat when ice cover melts. Earth warms up. The process continues with plants migrating towards the poles until it's too cold and too dark for the chlorophyll crowd to go any further. Back at the equator, it gradually dries out and gets hotter. Eventually the Saharan jungle dies off, reflection increases, cooling gets under way again. Desert cover increases. Plants get squeezed between deserts and the snow. Earth cools. Eventually, plants no longer have control, snow fall buries those nearer the poles, increasing reflection, making it colder still. Clouds form, reflecting more light. Plants get buried and lose ground. Snow cover increases. Clouds increase. Brrr.... deserts are still too dry and plants can't get a grip. Snow accumulates around the poles, sea levels fall. More land is exposed. Yes, the ice age has returned. Plants are squeezed between the snow and the deserts. Right now, we are at the end of the interglacial, with deserts around the hot equatorial regions, and plants up near the poles. Grapes are grown in Gibbston Valley which was once full of glacier. Lake Hayes and other ex-glacial lakes are recreational areas with greenery around them. We are at the tipping point back to glaciation. If you think 10cm of ocean rise over 100 years is bad, wait until you see what 10 metres of snow over cities is like. We might have to wait only until 2019 to find out. Mqurice