Climate Letter #624

CO2 levels are way up.  The numbers we are seeing right now are not good, and are getting more and more difficult to explain as the days go by.  Last week’s average at Mauna Loa was 405.62 ppm, up 4.19 from the year ago week.  As you can see on the link below, the last few days have been hovering around 406 and it looks like the full month will be over 405, v. 401.52 last year.  We have been running ahead of schedule on spring season carbon release this year, a natural phenomenon which should be sharply reduced in April.  If that fails to happen we then need to start worrying about a gain in emissions due to a significant boost in permafrost melting, as affected by the unusual lack of a real winter in the north country.  Human fossil fuel burning, which is reportedly fairly flat at this time, should not provide us with anything close to the current behavior of CO2 readings.

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Here is a good review of the mechanics of permafrost thawing and why it is a worry, written a year ago.
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The outlook according to Nicholas Stern.  This interesting review was published in the Shanghai Daily, a fact that is interesting in its own right.  Stern, an economist who knows his climate science very well, believes the Paris conference marks a massive change of outlook, because world leaders now recognize that a complete overhaul of energy sources will not penalize economic development.  A few years ago this was not the case, nor was it even a reasonable dream.  Leaders are also beginning to understand that a failure to make the transition will soon cause much economic harm.  (Some governments or political groups and their private bedfellows, of course, still refuse to accept that message.)
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Further notes on the emergence of community solar.  This is a great follow-up to my report in yesterday’s Climate Letter.  It seems that public utilities are suddenly waking up to the strategic opportunities that beckon their own participation.  As Deloitte puts it, the “evolution of community solar is a classic case of business model innovation turning a challenge into an opportunity.”
With proper collaboration, as suggested here, the installation costs of community solar projects can be cut as much as 40% from current levels:
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An Australian wave energy technology will be fully tested.  The device has a number of apparent advantages but still needs to be proven effective on a large scale.
Carl

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