Climate Letter #1414

Severe flooding in Canada (Eco Watch).  “This flooding is happening here in Quebec, it’s happening in Ontario, it’s happening in New Brunswick. And really sadly, what we thought was one-in-100-year floods are now happening every five years, in this case, every two years.”

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Farmers in the US Midwest are counting the cost of recent ‘bomb cyclone’ flooding (The Guardian).  There are multiple problems to face, some of them catastrophic.  “Some farmers may not be able to plant their crop this year because the land is either too wet or still underwater.”  And more rain is on the way.
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Preview of a coming report on the loss of biodiversity, in the most comprehensive assessment ever published (BBC News).  “It will likely warn that we are on the brink of a rapid acceleration of the global rate of loss of species. And it will say the threat these losses pose – and the challenge that presents – is on a par with climate change.”  Climate change will be featured as a contributor to the loss.
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In a separate story from BBC News, this same report will describe how human activities are doing potentially catastrophic damage to Earth’s productive soils.  “There’s three times more carbon in the soil than in the atmosphere – but that carbon’s being released by deforestation and poor farming…..This is fueling climate change – and compromising our attempts to feed a growing world population.”
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There are two significant weather events happening right now in the Arctic region.  As depicted in Today’s Weather Maps, one can be seen over the frozen Arctic Ocean in the shape of an arrowhead, where the temperature anomaly in the center part is getting close to 20C.  Greenland is experiencing a comparable warmup, and what is truly remarkable is the fact that these two events are the product of two completely separate weather systems, arriving from similar types of developments that have occurred at the same time but on opposite sides of the globe.
Inline image
If you have a half hour or so to spare, this particular happening will give you a great opportunity to explore the whole picture of what is going on, as found on other links in the same website—https://climatereanalyzer.org/wx/DailySummary/#t2anom.  There are closely associated phenomena to be found in many different indicators on many different maps, and they are not hard to spot if you look closely.  Start with Precitable Water, which for me is the most interesting since it is the carrier of water vapor, the greenhouse gas that constitutes the primary work horse of temperature changes on a short-term basis.  (CO2 will always be primary over the long term, but its changes are too slow to have any effect at all from day to day.)  Surface winds and jetstream winds both have a strong influence over the pathways that enable large amounts of water vapor to move from warm ocean sources all the way into the Arctic, and these should be studied.  For a more detailed look at surface winds, in close to real time, there is another website called “Windy” that has unbeatable information—https://www.windy.com/?69.178,-8.965,4

The above map also shows several cold anomalies that form when air masses containing reduced amounts of water vapor are present.  That diagonal streak across northern Canada was mainly produced by cold and very dry surface air blowing in from the north.  Something of similar nature is happening in Siberia, where horizontal jetstream positioning appears to have considerable influence.  Don’t forget to check out the broad global maps below the round sectionals.  Altogether, there is endless information to be had, endlessly fascinating.
Carl

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