Climate Letter #533

Posted on November 18, 2015 by Carl Campbell
How the global climate has been warming, an analysis.  This post contains a chart that breaks down historical temperature trends by the most important influences that mark each year.  El Nino years and La Nina years both follow their own steady course, and both are on a parallel track that has risen 0.8C in the last fifty years.  For each some years will be strong, some weaker.  2015 is a very strong El Nino year, which really sets it apart.  Also, don’t miss the section about ocean heating, where the chart data shows an unwelcome trend of acceleration.

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How the planet breathes CO2 in and out.  Based on new satellite observations, this post has an animated video showing how the total cycle changes over the course of a year, along with much-needed explanations.  This is what accounts for the rhythmic wiggles that are revealed in the Keeling curve that we check out every month.  Pretty neat!
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Climate science:  An introduction to pingos.  Pingos are an unfamiliar part of the earth’s geology, consisting of mounds of ice found only in the high North.  They are believed to form a link to trapped methane deposits, with significant implications for the future of climate, but much about their formation remains unknown.  This story will quickly bring you up to speed.
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Latest comparisons of different energy sources (US).  This is a report from Lazard, the big investment banker that has been making these studies for years, comparing renewables to fossil fuels by means of an abundance of number crunching.  Wind and utility-scale solar PV both end up with impressive cost advantages along with continuing trends of improvement.  “Social costs,” which would tip the balances even more, are not included.
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An interview with the president of Kiribati Islands, a TED talk.  This gentleman is very personable and engaging.  His country is in the worst possible position relative to the effects of climate change, and there is no high ground to move into.
Carl

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