Climate Letter #651

A full update on Canada’s Fort McMurray fire problem.  Part of the problem is that British Columbia could not send help because of the need to deal with too many fires of its own.  And, across Saskatchewan the fire danger ratings now run from high to extreme.  “Canada has experienced year to date, (May 3) over double the forest fires of any average in the last 25 years.  Worse, the 22,817 hectares consumed year to date are at least 400% higher than the 5, 10, 15 and 25 year averages.”  This may be a long and difficult summer.

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Here is a post that puts the fire into a context of global climate change, as well as El Nino.  One of the points made is that the burning of boreal forests releases huge amounts of carbon into the atmosphere, on top of the emissions created by humans burning fossil fuels.  This could very well be affecting the unusually strong CO2 reports that I have recently made comments about in these letters.  The idea of a “runaway greenhouse effect” is not one to take lightly.
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An excellent review of current thinking about sea level rise.  There is growing acceptance of studies that show both a faster and higher increase than what was normally anticipated even a year or two ago, as we learn more and more about the melting processes that affect each of the two major ice sheets.  We also keep learning more about the relationship between sea level and global temperatures in the distant past.  The doubts that remain about our future have more to do with the number of decades, not centuries, required for painfully high numbers to be realized.
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Eleven charts showing progress of the global clean energy revolution, from Bloomberg.  Some are quite familiar, some not so.  Number 8, the downtrend in coal prices, looks unstoppable.  Number 9, the history of UK coal consumption, is really amazing.  The last one is a good reminder of the size of the task that is implied by honoring the 2C target.
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Information gleaned from the climate plans submitted to the UN from 189 countries.  Some interesting things show up, including a listing with the relative importance of all the different subjects of main concern.  Again, there is a clear need shown to dramatically step up the pace of progress.
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Drought has become an increasingly acute problem for Pacific islands during El Nino events.
Carl

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