A new estimate for global warming if all fossil fuels are extracted and burned. This study tells why it would be 8 degrees C by the year 2300, which is more than most others have predicted. It goes on to describe what the planet would be like in that event, certainly not leaving much room suitable for human habitation. This is not going to happen, because humans will finally catch on and stop burning fossil fuels long before they are all gone, as the bad effects become too obvious to ignore. We have almost reached that point today, with just a 1C rise. By the time 2C is realized we will most likely have had more than enough, screaming for a stoppage and reversal no matter what the cost. At the current rate of warming 2C will not be here for 50 years, but there are various effects that could shorten that period.
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Is CO2 removal a viable option? Here we have an interview with physicist Klaus Lackner, who is probably the world’s foremost proponent of forcible removal of CO2 from the air along with a set of proposals about how it can be done. I think his answers are logically sound and right on target, but would have added more emphasis on the virtues of sharply cutting the consumption of energy that goes well beyond the meeting of basic human needs. Some day, hoping for a return to less than 350 ppm, we may want to remove—at considerable cost—every single pound of carbon now being emitted that stubbornly insists on staying in the atmosphere. Prevention might be a good bit cheaper than the cure.
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A list of sixty simple ideas that will help anyone who wants to “go green” starting today:
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Another good reason to cut thermal coal consumption. The need to conserve vital water supplies is often overlooked.. This story also makes a good point about the harm done by returning fresh water to nature after it has been used to capture heat.
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A significant step forward in lithium-air battery development. This type of battery has tremendous potential that is known but has gone untapped, much like the situation with solar energy cells a few decades ago. That could change because of a recent materials breakthrough. “….at one-fifth the cost and weight of those presently on the market, a lithium-air battery would allow an electric car to drive 400 miles on a single charge.”
Carl