Climate Letter #1509

A new study has important information about the effects of climate change on soil hydrology (Rutgers University).  “Climate change may reduce the ability of soils to absorb water in many parts of the world, according to a Rutgers-led study. And that could have serious implications for groundwater supplies, food production and security,  stormwater runoff, biodiversity and ecosystems…..Water in soil is crucial for storing carbon, and soil changes could influence the level of carbon dioxide in the air in an unpredictable way.”  This finding opens up a need for further study and possible changes to future climate models.

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Deforestation in Africa is a developing hotspot that should get more attention (The Guardian).  “While the greatest losses of forests by area in the years 2014-18 occurred in tropical Latin America, the greatest rate of increase was in Africa, where deforestation rates leapt from less than 2m hectares a year on average from 2001 to 2013, to more than 4m a year from 2014 to 2018…..African timber is exported to China, and this is one of the three dominant causes of deforestation.”
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A Washington Post feature story focuses on places around the globe that have warmed by 2C or more since the late 19th century.  Roughly one-tenth of the surface of the globe is so affected, almost all in the Northern Hemisphere.  The story has many interesting highlights, including numerous references to the disruptive effect of high heat on clams and other sources of coastal food supplies.
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A need for more spending on adaptation to climate change gets high-level backing (EcoWatch).  A special commission that includes some big names has issued a report that outlines five specific areas where investments that can only be provided by big governments would pay high returns, and cannot be left undone.  This is the kind of material that smart politicians should grab onto, even if they are afraid of advocating the strong measures that are designed to cut carbon emissions.
–Here is the commission’s website, which fully lays out the principles and recommendations.  I’m impressed with it.
–A writer for The Guardian is also impressed, but doesn’t want us to forget about cutting emissions.  Actually, governments today do very little to cut emissions, where investments are almost entirely undertaken by private interests that have found ways to profit from new sources of energy.  If governments were to expand their budgets for adaptation they might start to wonder why they are still handing out subsidies for fossil fuel usage and development, or why they are not giving maximum help to those industries that are doing the sorts of things that tend to hold down the need for spending on adaptation, or everyday disaster relief for that matter.
Carl

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