Climate Letter #888

Posted on April 6, 2017 by Carl Campbell
An interview with Kevin Anderson.  Kevin is a professor of engineering who is devoted to studying the processes involved in the mitigation of climate change, both active and proposed.  His engineering background has prepared him to be a realist—is such and such a plan going to work?  He probably understands climate science as well as any professional in that field, accepting their principal conclusions about the causes and effects of climate change along with what needs to be done.   He goes beyond most of them by harping on the importance of making deep personal cutbacks in the use of energy, not just rich people but middle class as well, beginning right now.  Maybe that is why he is not very popular.

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Bad things are happening in India, mostly because of climate change.  They are well-described in this fine post from Robert Fanney.  India holds about one-sixth of the world’s population.  If you look at a map of the globe you can see that it is positioned on exactly the same latitude as two of the world’s great deserts, Sahara and Arabian, plus several of the lesser ones.  If for any reason the monsoon pattern were permanently altered it is hard to see how India could avoid the same fate that befell the Sahara just a few thousand years ago, prior to which that region was lush, green and well-populated.
—This Weather Map (scroll down) will show you India’s geographical position and also its current day’s temperature average.  Notice the deep red color plus dark smudges, the same as currently seen in much of the Sahel region, which place the day’s averages over 90F with highs normally exceeding that by ten to fifteen degrees.  Save this site and check it every day, along with the same map in the precipitation link.
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How climate change could affect Trump’s border wall.  Most of the wall as planned will run down the middle of the Rio Grande River, which is usually quite tame but is also subject to monster flooding events that are becoming more frequent.  Joe Romm points out the complications that must be addressed and their high cost of fixing.
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Global photosynthesis by plants has increased substantially along with the rise in CO2.  Scientists have discovered a chemical record that indicates a 30% increase in the annual sum of all photosynthesis over the past 200 years.  Having more nutritional feed provided by CO2 is a direct reason, plus the help of a longer growing season as temperatures grow warmer.  Nitrogen fertilizers also make a difference.  This is a big reason why emissions due to human activities do not all stay in the atmosphere.
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Data has been compiled concerning the number of tree species threatened with extinction.  The number is found to be 9600, of which 300 are critical.  Deforestation and global warming are both heavily involved.  The number of species known to exist is 60,065.
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A famous picture of Naruto, member of a breed of monkeys that is now threatened with extinction by human hunters.  This “selfie” is one that is sure to put a smile on your face.
Carl

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