Climate Letter #552

A new report about the melting rate of Greenland’s ice.  Evidence from lakebed sediment cores reveals the present rate of decline being the greatest in 9500 years, and sunlight cannot be blamed.  The first video has some spectacular new footage showing how the melting process works.

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New observations project faster than expected permafrost melting in northern Alaska.  This study was not about greenhouse gas emissions due to melting, but will inevitably be used to back up those who fear a substantial rising of emissions from this source.
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The Arctic report card for 2015 has been issued by NOAA.  This broad coverage of facts shows worsening conditions across the board, well beyond the level of changes experienced elsewhere on the globe.  “NOAA said warming in the Arctic is occurring at twice the rate of anywhere else in the world – a 2.9C (5.2F) average increase over the past century – and that it is certain climate change, driven by the release of greenhouse gases, is the cause.”
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San Diego will have 100% renewable power in 20 years.  The 8th largest US city, led by a Republican mayor and backed by the business community, has made a pledge that is legally binding.  The announcement happens to be well-timed, but the plan itself has been in the making for years, independent of any federal-level pledge or plan for national action.  It’s a good sign of more like this to come.
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Global fish populations are troubled because of warming waters.  A new study finds that about half of all species have a problem with newborn fry not being able to find enough food due to shortages of plankton.
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In spite of the Paris accord, Japan and South Korea are going ahead with plans to open new coal-fired power plants.  India is by no means alone in that regard.  There will be new pressures coming into play, from within as well as without, that could yet produce adjustments.
Carl

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