[TheClimate.Vote] September 6, 2020 - Daily Global Warming News Digest

Sun Sep 6 11:14:16 EDT 2020

/*September 6, 2020*/

[CBS video news 2 mins]
*All-Time Records' Possible As Heat Wave Hits SoCal This Labor Day Weekend*
https://www.youtube.com/watch?v=PBPZNuI4B8c

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[more heat coming]
*As second heat wave sears California, experts say health impacts will 
worsen with climate change*
By TONY BARBOZA
SEP. 5, 2020
As the second major heat wave in weeks bears down on Southern 
California, experts and authorities are warning the public to take 
seriously the health dangers of extreme temperatures that are only 
getting worse due to climate change.

If the past is any guide, Los Angeles will see a spike in 911 calls, 
emergency room visits and deaths during a powerful heat spell that’s 
expected to peak Sunday, with highs between 110 and 120 hitting inland 
valleys and 95 to 105 degrees along the coast.

"Heat of this magnitude is rare, dangerous and very possibly deadly," 
the National Weather Service warned. Temperatures will remain unusually 
warm overnight -- in the mid-70s and 80s -- "creating a dangerous 
situation where it will be difficult to cool off without air conditioning."

Wildfires, elevated smog levels and possible power outages may pose 
additional threats. The pandemic, meanwhile, could make this Labor Day 
weekend especially deadly, as coronavirus restrictions have closed many 
of the cooled indoor spaces that usually offer relief...
https://www.latimes.com/california/story/2020-09-05/heat-health-risks

[activism brief video report]
*BBC News | 1pm | 5 September 2020 | Extinction Rebellion UK*
Sep 5, 2020
Extinction Rebellion
https://www.youtube.com/watch?v=de4BEbKIu7E

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[brief news clip]
*Sky News | 11am | 5 September 2020 | Extinction Rebellion UK*
https://www.youtube.com/watch?v=6sHjz6NJ9aU

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[three hours of live coverage]
*XR LIVE! REBELLION 2020*
https://www.youtube.com/watch?v=5XsIrBTLtnE

[information website]
*climatetippingpoints.info*
What you need to know about Climate Tipping Points and Feedbacks
https://climatetippingpoints.info/
- -
*Fact-Check: do tipping points commit us to rapid catastrophic warming?*
https://climatetippingpoints.info/2019/04/15/fact-check-do-tipping-points-and-feedbacks-commit-us-to-rapid-catastrophic-warming/
- -
*Fact-Check: is "global dimming" shielding us from catastrophe?*
https://climatetippingpoints.info/2019/04/15/fact-check-is-global-dimming-shielding-us-from-catastrophe/

[Sept 4, 2020]
*Ocean carbon uptake widely underestimated*
by University of Exeter
The world's oceans soak up more carbon than most scientific models 
suggest, according to new research.
Previous estimates of the movement of carbon (known as "flux") between 
the atmosphere and oceans have not accounted for temperature differences 
at the water's surface and a few metres below.

The new study, led by the University of Exeter, includes this--and finds 
significantly higher net flux of carbon into the oceans.

It calculates CO2 fluxes from 1992 to 2018, finding up to twice as much 
net flux in certain times and locations, compared to uncorrected models.

"Half of the carbon dioxide we emit doesn't stay in the atmosphere but 
is taken up by the oceans and land vegetation 'sinks'," said Professor 
Andrew Watson, of Exeter's Global Systems Institute.

"Researchers have assembled a large database of near-surface carbon 
dioxide measurements--the "Surface Ocean Carbon Atlas" 
(http://www.socat.info) - that can be used to calculate the flux of CO2 
from the atmosphere into the ocean.

"Previous studies that have done this have, however, ignored small 
temperature differences between the surface of the ocean and the depth 
of a few metres where the measurements are made.

"Those differences are important because carbon dioxide solubility 
depends very strongly on temperature.

"We used satellite data to correct for these temperature differences, 
and when we do that it makes a big difference--we get a substantially 
larger flux going into the ocean.

"The difference in ocean uptake we calculate amounts to about 10 per 
cent of global fossil fuel emissions."

Dr. Jamie Shutler, of the Centre for Geography and Environmental Science 
on Exeter's Penryn Campus in Cornwall, added: "Our revised estimate 
agrees much better than previously with an independent method of 
calculating how much carbon dioxide is being taken up by the ocean.

"That method makes use of a global ocean survey by research ships over 
decades, to calculate how the inventory of carbon in the ocean has 
increased.

"These two 'big data' estimates of the ocean sink for CO2 now agree 
pretty well, which gives us added confidence in them."

The paper, published in Nature Communications, is entitled: "Revised 
estimates of ocean-atmosphere CO2 flux are consistent with ocean carbon 
inventory."
https://phys.org/news/2020-09-ocean-carbon-uptake-widely-underestimated.html

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[CO2 measured]
A Collection of Surface Ocean CO₂ Observations
Quality Controlled by the Science Community
*SOCAT version 2020 is released!*
The Surface Ocean CO₂ Atlas (SOCAT) is a synthesis activity for 
quality-controlled, surface ocean fCO₂ (fugacity of carbon dioxide) 
observations by the international marine carbon research community (>100 
contributors). SOCAT data is publicly available, discoverable and 
citable. SOCAT enables quantification of the ocean carbon sink and ocean 
acidification and evaluation of ocean biogeochemical models. SOCAT, 
which celebrated its 10th anniversary in 2017, represents a milestone in 
biogeochemical and climate research and in informing policy.

SOCAT data are released in versions. Each succeeding version contains 
new data sets as well as updates of older ones. The first version of 
SOCAT was released in 2011, the second and third version followed 
biennially. Automation allowed annual public releases since version 4. 
The latest SOCAT version (version 2020) has 28.2 million observations 
from 1957 to 2020 for the global oceans and coastal seas. Calibrated 
sensor data are also available.

SOCAT version 2020 was released on the 16th of June 2020, containing 
data submitted on or before 15th of January 2020. Data submissions for 
the next version are welcome at any time, and will be included in the 
next SOCAT release in 2021.
https://www.socat.info/

[video lecture]
*Atlantification of the Arctic Ocean from Ongoing Sea Ice Annihilation, 
and Risks of a Slowing AMOC*
Sep 5, 2020
Paul Beckwith
In this second of a new series of Arctic sea ice demise videos I chat 
about the demise of the slushy in the Arctic Ocean. We are nearing the 
yearly minimum, with only a few weeks of melt remaining, and it is 
really coming down to the wire as to whether or not we will set a new 
record, beating out 2012 or being a close second. In 2012 we had solid 
ice remaining, whereas this year we only have an ocean of slushy thin 
ice cubes remaining. This ice is moving faster than before, and since 
the surface is rougher it is easier for the wind to grab it and set it 
in motion, and the IceSat is able to detect waves from far away storms 
propagating under the ice further sloshing it around and mixing the 
colder near freezing surface water with warmer saltier Atlantic water 
from below, leading to so called "Atlantification" of the surface 
water.  In this video series I discuss in detail the recent peer 
reviewed scientific papers on how Atlantic Water (dense, warmer water a 
couple hundred of meters below the sea ice) has moved within 80 meters 
of the bottom of the sea ice in the Eastern Euro Basin, and will likely 
keep the ocean from freezing up there in the winter. The heat in their 
Atlantic Water is enough to completely melt out the entire Arctic Ocean 
ice three or four times over, as it eventually makes it near the surface 
over the entire basin. This already happens in the Barents Sea region, 
and is spreading eastward into the rest of the Arctic. I will also 
discuss how the so called "chimneys" where the Arctic Ocean water 
descends to complete the AMOC (Arctic Meridional Overturning 
Circulation), and how this process is being disrupted by 
Atlantification, thereby weakening the thermohaline process leading is 
closer us closer to a complete shutoff and then redistribution of global 
ocean circulation patterns. Wow!!
https://www.youtube.com/watch?v=cbsBoE3NbP4

[Digging back into the internet news archive]
*On this day in the history of global warming - September 6, 2011 *

2011 conference in Colorado hosted by climate-change-denying libertarian 
billionaires Charles and David Koch. In one clip, Charles Koch compares 
President Obama to Saddam Hussein. That evening, Friedman discusses the 
conference on MSNBC's "The Ed Show."

http://www.motherjones.com/politics/2011/09/exclusive-audio-koch-brothers-seminar-tapes/ 

  http://youtu.be/7qLiEB4Ed_E

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