Climate Letter #319

Posted on January 20, 2015 by Carl Campbell
Solar costs are going to keep on falling. Giles Parkinson reports from a major conference being held in Abu Dhabi. There is a concensus that the installed cost of solar panels, in terms of global average, will decline by another 30-40% by the end of 2017. This post provides plenty of information from highly regarded sources to back up that prediction. It’s an amazing story, not one to be missed. I don’t think many people realize this is actually happening, or what could come of it.

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A major study on the health of ocean life, as reported by the NY Times. The report provides some perspective on the difference between current extinction rates on land and in the sea. It also offers hope that it is not too late for effective recovery to begin, although that is unlikely unless strong actions are soon taken.
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A bit of history from paleoclimate science. This report helps to fortify our confidence in measurements of atmospheric CO2 levels gathered from ice cores representing the distant past. The level has always been subject to change, with no help at all from humans, but what a difference. During the last deglaciation an “abrupt” climate change was associated three different times with unusual CO2 increases of 10-15 ppm over one or two centuries. We are now adding that much in five to seven years. Conditions are different, because today’s ice sheets are much smaller and more polar in location, but it should not take long to get a full test of the warming effects of CO2 itself.
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More perspectives on the pope’s activities and plans. One of the points made here is of special interest in the current U,S. political climate: “The strongest concern about global warming can be found in Latin America. The trend holds within the U.S., where Latinos are far more worried than whites about climate change, according to the Public Religion Research Institute.” Republican politicians hoping to add Latinos to their voter base may find this to be a greater than expected complication as the issue gains legs.
Carl

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