Climate Letter #1165

A troubling outlook for Florida’s Everglades.  The bordering sea level is rising at around three times the global average.  “The outlook is pretty grim. What’s mind boggling is that we are facing the inundation of south Florida this century.”
https://www.theguardian.com/us-news/2018/may/02/mangroves-everglades-florida-rising-sea-level

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–Tidal flooding along the beaches of North Carolina is dramatically increasing, much sooner than anyone expected, with no sign of stopping.  http://www.newsobserver.com/news/technology/article210413904.html

An examination of the risks presented when toxic coal ash is deposited in zones exposed to flooding.  There are fourteen of these across the US (and many more overseas), often poorly constructed and poorly regulated.
https://thinkprogress.org/toxic-coal-ash-ponds-flood-plain-risk-a04f5e4c9929/
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A look at five natural feedbacks from climate change that make the situation even worse.  A recent discovery has added a new one to the main list, with the result being an increase in the amount of methane released from lakes in the northern hemisphere.  Freshwater bodies are already responsible for 15 percent of the Earth’s natural methane emissions, and that amount could almost double over the next fifty years.  Other feedbacks of a more familiar type are also described in this story.
http://www.dw.com/en/when-nature-harms-itself-five-scary-climate-feedback-loops/a-43649814
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An update on Earth’s problem of oceanic dead zones.  The largest one of all has now been found in the Gulf of Oman, off the Arabian Sea.  This one and most others are rapidly growing, mainly because of pollutants but with an assist from waters that have warmed due to climate change.

http://www.cbc.ca/news/technology/gulf-of-oman-marine-dead-zone-1.4645018

The argument for not imposing carbon taxes.  The Republican House may pass a resolution condemning the idea, for reasons that are partially correct.  An abrupt reduction in the use of carbon would indeed have an impact on current living standards, which is true in the overall sense, but a well-crafted dividend plan, if incorporated, would transfer essentially all of that impact to the wealthier classes.  That is not mentioned.  It is also true that substituting firewood for natural gas in order to stay warm is known to be a poor and even dubious way to save emissions.  The arguments doubting the benefits of a carbon tax simply imply that there is no need to act urgently in order to reverse the atmospheric CO2 level, which is totally incorrect from a scientific point of view.
http://thehill.com/opinion/energy-environment/386065-the-costs-of-carbon-taxes-are-real-and-crippling
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Here is a much more nuanced view of the problems and choices we now are facing.  The study assumes that we would like to stay within the carbon budget while also hoping to maintain or improve lifestyles.  That would be unlikely to happen without greatly accelerating the pace of gains in energy efficiency on top of an accelerated transition to renewables and quick elimination of the worst kinds of fossil fuels.
Carl

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