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Politics : Politics of Energy

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To: Hawkmoon who wrote (36067)	12/5/2012 1:57:02 AM
From: Maurice Winn	2 Recommendations of 86356

Life is certainly a lot easier for plants with 390 parts per million than the homeopathic 280 ppm before people got burning in a big way. But they were in a desperate fight for survival against each other in a global tragedy of the commons. No plant could stop using CO2 but there was no mechanism to do a CO2 intake cap and trade in the plant world, nor a carbon inhalation tax. They had to get big leaves, fight for sunshine [other than in deserts where water was the limit and suck in every molecule of CO2 they could get their hands on. Now they can breathe easier and take on the fringes of deserts with their reduced water requirements. <the assumption is that with CO2 levels rising, it's not a critical limiting factor in terrestrial plant growth. > In fact, CO2 is still a critical limiting factor for terrestrial plants, at the fringes, where the real battles for survival take place and where the climate drive takes place. As deserts are covered with plants, reflection is reduced, so more light is absorbed and the air is warmed. Plant cover expands and contracts, driving the climate to be warmer and cooler. It's an oscillating situation, as with most things in nature. There is not much that sits stable. Mqurice

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