Climate Letter #957

The flooding of Indonesia’s coastline villages.  Indonesia is a land of 17,000 islands, of which at least 6000 are inhabited.  It now has a population of over 250 million, a good majority of whom live in about 42 million homes that are at risk of being flooded within the next three decades.  For many that has already happened, as shown here in a fine gallery of photos.

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For coastal Americans, it is time to decide how much flooding can be tolerated, possibly when to move, or when to start preparing defensive structures.  Maps are now available for practically every community showing how regular flooding events will be growing decade by decade through 2100.
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A new study of “natural thermometers” has no surprises. We will never know exactly what temperatures in the distant past were like, but there are plenty of guidelines and they can constantly be refined, going back to older and older starting points.  This latest assures that we are the hottest in at least 2000 years.
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New data shows the strong impact of higher temperatures on aircraft capabilities.  The biggest problem is encountered before the plane can even take off.  The amount of weight restriction that is required in response imposes economic costs that are “non-trivial,” and the effects are more than just local.
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A big step forward for solid-state lithium batteries has been reported.  In this case the researchers say they have high hopes of doubling the energy capacity of today’s lithium-ion batteries along with other improvements.
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From the IEA there is a comprehensive new report showing global trends of investments dedicated to creating new sources of electric power.  Carbon Brief has prepared seven charts that are very helpful.  Note that the amount of totally new demand for power each year is still greater than that which can be provided by all of the different non-carbon sources together.
Carl

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