Climate Letter #450

The trend of global warming brought up to date with discussion and on charts, for the years 1880-2015.  What’s special about this piece is that the composer used available data for the Northern and Southern Hemispheres to construct extra charts independently for each of them.  The north has warmed quite a bit more than the south, putting it well above the global average, thanks in large part to the very rapid warming of the Arctic region.  Also, at the end of this post there is a link to a video of a lecture by senior climate scientist Kerry Emmanuel, which is full of clear illustrations about the basics of global warming and very much worth taking some time to watch.  https://tamino.wordpress.com/2015/07/22/nasa-and-noaa/

The effect of combining the emerging El Nino with the very warm waters already in place in the north Pacific.  All discussed with some vivid imagery and a helpful video.  http://climatecrocks.com/2015/07/23/noaa-el-nino-and-the-blob/

More bad news from Glacier National Park.  It’s not just that the glaciers are melting away, now there is a massive wildfire doing damage to this iconic landmark. http://robertscribbler.com/2015/07/22/glacier-national-park-is-burning/

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The “third way” to control greenhouse gas.  This is an article by Tim Flannery, a well-known author, published in the NY Times.  Flannery has spent much of his life studying climate change issues, and seems to have doubts about humanity’s willingness to actually reduce greenhouse gas emissions as quickly as required in order to prevent severe damage.  He also has little trust in the effectiveness of various geoengineering proposals.  That would leave us with one more approach to a solution, difficult but doable, which is to remove large quantities of CO2 directly out of the atmosphere.  This story is about the various ways to do it, and why we should start making preparations by improving on those that are showing the most promise.  Indeed, even if we do go ahead and drastically cut emissions, that will not be good enough to save the day.  We will still have to get rid of some of the stuff that is already out there, continuing to do harm, that won’t soon go away by itself.  No matter what, the gas will be costly to clean up.    http://www.nytimes.com/2015/07/24/opinion/a-third-way-to-fight-climate-change.html?_r=0

Australian households are now being offered renewable solar power, with storage, comparable to what Tesla is planning to offer later on.  This story digs into what it will cost and why it already makes sense for some people, with future cost declines expected.   http://onestepoffthegrid.com.au/lg-chem-pushes-australian-battery-storage-prices-further-down-the-curve/

Carl

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