Climate Letter #388

From carbon sink to carbon source. This story adds more detail to our recent post showing that plant growth cannot keep pace forever with CO2 growth. It also sheds light on the next step, why carbon stored in soils and dead plants becomes subjected to more rapid decomposition, enough to produce more CO2 than what the living plants are absorbing. I also recommend that you browse through the comments that follow, for worthy discussion and also some links to yet more outside sources. This is a topic that is taken very seriously in the science community, based on the knowledge that fully half of human CO2 emissions are now being buried either on land or in the oceans.
http://www.carbonbrief.org/blog/2015/04/worlds-plants-and-soils-to-switch-from-carbon-sink-to-source-by-2100-study-shows/?

Here is a relevant story published in mid-March, using a study of the Amazon rainforest as a good example.

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A survey of environmental damage created by 50,000 new oil and gas wells in the great plains of North America. That’s just since the year 2000, involving direct and enduring impact on 7 million acres of land.
http://www.climatenewsnetwork.net/oil-drilling-has-deep-impact-on-health-of-great-plains/?
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Update on latest developments in renewable energy research. As described, much progress is still being made in silicon-based solar panels, thin film-based panels and wind turbines. These are developments that will soon be ready for production, leading to a significant furthering of price declines.
http://www.climatecentral.org/news/the-world-of-renewable-energy-18919
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Plus, an interesting new twist that may become an important breakthrough for a variety of battery manufacturers.
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The evolution of electric cars. This extraordinary feature tells a story that goes all the way back to the year 1828, lavishly illustrated. If you are an old-car buff, or any kind of a history buff, you should enjoy this one.
Carl

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