Climate Letter #719

Posted on August 10, 2016 by Carl Campbell
The hazards of burning wood chips for energy have been properly identified in a new study.  This source of fuel has become a big industry, with production of the wood coming mostly from the US, then exported to Europe for burning, an activity that is subsidized.  It has all happened because of various errors which are now being corrected, but it is not yet clear what changes in the activity will result.

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The clearing of forests in Southeast Asia is linked to huge risks of diversity loss.  A new study finds that 42% of mammals, birds and amphibians that live in such forests face a higher risk of extinction than previously understood, just from habitat destruction alone.  There are techniques available that can help alleviate this problem, but that does not provide relief from the biological damage and extinction potential that the same clearing helps to cause through the separate effects of climate change.
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A professional ecologist with many years of experience writes about the difficulties of preserving biodiversity in the face of today’s many environmental challenges, not least of which is the rapidly accelerating impact of climate change:
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The story of a Chinese entrepreneur, as told in a five-minute video, who is responsible for making a big difference in China’s transition to renewable energy, which is now leading the world.  It’s truly inspirational.
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A small but vital component that has the potential to escalate solar electrification.  The device, called an inverter, has a role that goes well beyond simply switching DC current to AC.  Sophisticated versions enable numerous sources of power input to combine into a single utility-scale grid that is much more efficient and economical than having many independent systems working on their own.  “Across the US, widespread use of advanced inverters could more than double solar capacity from about 170 gigawatts (GW) to 350 GW.”
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A simple new process will correct faults that commonly occur in the manufacturing of perovskite solar cells.  The difference is found to add about four percentage points, on average, to cell efficiencies, with enhanced stability.
Carl

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