Climate Letter #524

From satellite data, going back to 1979, this October was the warmest on record.  This post contains a neat graph (which you need to expand) showing anomalies for every month since the start.  The effect of El Nino/La Nina cycles stands out particularly well with this device.  It suggests that even higher anomalies can be expected for the next several months due to typical calendar effects, then a sharp reversal.  Regional differences are also explored.

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What were climate scientists saying fifty years ago?  This leading group fully understood the basic fundamentals, and their ability to predict the future was amazingly accurate.  There were few listeners back then, but that is now changing.
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Record-setting year for tropical cyclones and the like.  Records were set for the Northern Hemisphere, with no help from the North Atlantic.  This post has all the data and is also a good place to learn about the useful broad metric called “accumulated cyclone energy” or ACE.
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More seaweed farming could help solve many problems.  Seaweed, while growing, helps in the removal of CO2 from both the air and the oceans, has benefits for marine life, can be eaten, and more.  Growing enough of it to make a real difference is challenging, but one that should not be overlooked.
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US on track for 20-year low in carbon emissions.  This happened mainly because a large number of old and inefficient coal-burning power plants have been shut down, thanks to some hard pushing from the Sierra Club.  Credit should also go to the good fortune of having large supplies of cheap, low-carbon natural gas become available as energy replacement, thanks to the fracking industry, which sadly has created some environmental problems of its own.  A slow-moving economy, transfer of much heavy industry activity to overseas producers and better transportation fuel economy have also helped.  The US is still close to the top globally in emissions per person, all of which put together leaves not much to brag about.
Carl

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