Rapidly rising erosion along the western coast of sub-Sahara Africa. This stretch of over 4000 miles contains thousands of communities that are endangered by the rising seas. The amount of change in shoreline recession actually experienced in the recent past and present goes far beyond any reasonable expectation. As for the future, “Sea levels around the world are expected to rise by more than two-and-a-half feet by the end of the century, but they are expected to rise faster than the global average in West Africa.”
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China is halting construction of coal-fired power plants. This includes new proposals, projects already approved and at least ten plants that are presently under construction, almost completely reversing the direction the country was taking just a few years ago.
To show how important this change is, this chart that shows a breakdown of annual global coal use from 1980 through 2015. (It looks like China needs to be more aggressive about shutting down coal facilities that are currently operating.)
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An important step forward for perovskite solar cells. A difficult problem that has inhibited large-scale manufacturing has now been overcome without lowering efficiency, thus commercial production should finally be ready to go forward. Perovskite cells are cheaper to make than those based on silicon, have greater flexibility and have potential for much higher efficiency.
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Dramatic differences in the cost of new electric power generation in South Africa. Wind and solar are now about equal to each other, and both are more than 40% cheaper than new construction by coal, gas or nuclear. This has been closely researched in anticipation of major new needs for expansion.
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Climate science. There is some new thinking about the reasons behind the change in timing of the major ice sheet spreading cycles that began around one million years ago. A fine post for those who want a quick education.
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New research covers several smaller glaciers bordering Antarctica’s Amundsen Sea. The most worrisome finding concerns the amount of thinning of the frontally connected ice shelves due to melting from below, which allows the flow rate of the glaciers behind them to speed up.
Carl