[✔️] July 22, 2022 - Daily Global Warming News Digest

Richard Pauli Richard at CredoandScreed.com
Fri Jul 22 08:35:41 EDT 2022 

/*July 22, 2022*/

/[ US heating]/
*Extreme heat warnings in effect in 28 states across US*
100 million Americans are enduring searing temperatures as Biden 
declines to announce a climate emergency
The National Weather Service has warned that extreme heat will affect 
more than 100 million people in the US this week, with triple-digit 
temperatures in some states and broken temperature records in many areas 
across the country.

“Above-normal temperatures will continue to prevail across much of the 
US through the end of the week, with a significant portion of the 
population remaining under heat-related advisories and warnings,” the 
agency said.

Heat warnings and advisories have been put in place for 28 states, with 
central and southern states facing the brunt of the scorching heat...
- -
In Phoenix, America’s hottest city, an extreme heat warning was in place 
for Thursday and Friday. The temperature is forecast to hit 113F (45c) 
on Thursday afternoon and 115F (46C) on Friday afternoon. Heat 
advisories are only issued when temperatures are higher than average for 
the time of year, and in Phoenix in July that means temperatures over 
112F. So far this year, the city has broken or equaled four daytime high 
records and nine nighttime lows.

The impact of heat is cumulative and the body only begins to recover 
when temperatures drop below 80F. Climate scientists have warned that 
heatwaves – which have spread throughout Europe and Asia this summer – 
will be more intense and prolonged if the climate emergency is not 
addressed. A study published in May showed that human influence on the 
climate made a particular heatwave in south Asia 30 times more likely to 
have happened.

Speaking in Somerset, Massachusetts, about the climate crisis on 
Wednesday, Joe Biden said that global heating is an “emergency” but 
failed to declare a national emergency, as activists hoped the president 
would. Such a declaration would allow Biden to block crude oil imports 
or to direct the military to work on renewable energy production. The 
White House said that a formal emergency declaration is “still on the 
table”.

“It is literally, not figuratively, a clear and present danger,” Biden 
said. “The health of our citizens and communities are literally at stake.”
https://www.theguardian.com/environment/2022/jul/21/extreme-heat-warnings-advisories-28-states

- -

/[  the new abnormal ? ]/
*Brutal heat from Phoenix to Boston triggers alerts for 100 million*
About 60 million Americans in at least 16 states are set to experience 
triple-digit highs Thursday, and an additional half-dozen states could 
see the mercury reach the upper 90s.
By Matthew Cappucci and Jason Samenow
More than 100 million people in the Lower 48 states are under heat 
alerts on Thursday amid relentlessly sweltering temperatures that have 
soared as high as 115 degrees in recent days.

About 60 million Americans in at least 16 states are set to experience 
triple-digit highs Thursday; an additional half-dozen states could see 
the mercury reach the upper 90s.
- -
The Mid-Atlantic and the Northeast had been largely spared the heat and 
humidity this summer, but that is quickly changing.

Temperatures are forecast to reach the 90s from Richmond to Boston on 
Thursday, with heat index values in the triple digits.

While humidity will ease some on Friday behind a weak cold front, 
oppressive mugginess returns over the weekend.

Highs in New York will flirt with 90 degrees through Saturday, then 
spike into the mid- or upper 90s on Sunday. Washington, Baltimore and 
Philadelphia will be in the mid- to upper 90s through Saturday, 
approaching 100 degrees Sunday. Heat index values could reach 105 to 110.
Beneath these heat domes, the air sinks, clearing out cloud cover while 
allowing the sun to beat down relentlessly. Atop the heat dome is the 
jet stream, marking the southern periphery of cooler weather.
Beneath these heat domes, the air sinks, clearing out cloud cover while 
allowing the sun to beat down relentlessly. Atop the heat dome is the 
jet stream, marking the southern periphery of cooler weather.
https://www.washingtonpost.com/climate-environment/2022/07/21/heatwave-heat-texas-us/?utm_medium=email&utm_source=newsletter&utm_campaign=wp_energy_and_environment&wpisrc=nl_green

- -

/[ research paper explains the science  -- a split jet stream ]/
*Accelerated western European heatwave trends linked to more-persistent 
double jets over Eurasia*
Efi Rousi, Kai Kornhuber, Goratz Beobide-Arsuaga, Fei Luo & Dim Coumou
Nature Communications volume 13, Article number: 3851

    *Abstract*
    Persistent heat extremes can have severe impacts on ecosystems and
    societies, including excess mortality, wildfires, and harvest
    failures. Here we identify Europe as a heatwave hotspot, exhibiting
    upward trends that are three-to-four times faster compared to the
    rest of the northern midlatitudes over the past 42 years. This
    accelerated trend is linked to atmospheric dynamical changes via an
    increase in the frequency and persistence of double jet stream
    states over Eurasia. We find that double jet occurrences are
    particularly important for western European heatwaves, explaining up
    to 35% of temperature variability. The upward trend in the
    persistence of double jet events explains almost all of the
    accelerated heatwave trend in western Europe, and about 30% of it
    over the extended European region. Those findings provide evidence
    that in addition to thermodynamical drivers, atmospheric dynamical
    changes have contributed to the increased rate of European
    heatwaves, with implications for risk management and potential
    adaptation strategies...

Both frequency and cumulative intensity of heatwaves show a much faster 
increasing rate in Europe compared to the rest of the midlatitudes for 
the large majority of land grid points...

This is the first time, to the best of our knowledge, that the 
accelerated European increase in summer persistent heat extremes is 
quantified and linked to specific dynamical changes in the jet stream...

Future research should investigate how well climate models capture the 
links between heat extremes and double jets and whether any of those 
components change under different forcing scenarios. Such analysis would 
also allow to assess whether the observed increase in double jets is 
part of internal natural variability of the climate system or a response 
to anthropogenic climate change

https://www.nature.com/articles/s41467-022-31432-y



/[  video world news from India where they speak easily about privation 
and suffering  -- call it "Heat-flation"]/
*WION Climate Tracker | Climate change affects global food production*
Jul 21, 2022  Europe is suffering from an unprecedented and extreme 
heatwaves. There have been nearly 2,000 deaths due to heat and wildfires 
in the past few days; transportation across the continent has also been 
disrupted and thousands have been displaced. Apart from its impact on 
our daily lives, extreme weather can also have lasting effect on food 
production.
About Channel:
WION -The World is One News, examines global issues with in-depth 
analysis. We provide much more than the news of the day. Our aim to 
empower people to explore their world. With our Global headquarters in 
New Delhi, we bring you news on the hour, by the hour. We deliver 
information that is not biased. We are journalists who are neutral to 
the core and non-partisan when it comes to the politics of the world. 
People are tired of biased reportage and we stand for a globalised 
united world. So for us the World is truly One.
https://www.youtube.com/watch?v=NvxZmjQYdJM



/[  says GRIST and just about any climates scientist ] /
*Extreme rainfall will be worse and more frequent than we thought, 
according to new studies*
Researchers say some climate models are underestimating future floods.
- -
A climate model is a set of mathematical equations that quantify the 
earth system processes that occur on land, in the atmosphere, and in the 
ocean, and the external factors, such as greenhouse gases, that affect 
them. Scientists around the world use dozens of different kinds of 
models that can be regional or global, fine-grained or coarse, primitive 
or advanced.
Studholme’s study used climate models to predict how much extreme rain 
the world will get in the future. But unlike previous studies that 
averaged all of the available climate models in order to figure out how 
much rain the planet will get in coming decades, Studholme decided to 
only use the group of models that predict that climate change will 
result in an increase in something called precipitation efficiency — how 
much of a falling raindrop reevaporates into the atmosphere before it 
hits Earth’s surface. He excluded the models that forecast a decrease, 
since scientific observations over the past two decades indicate that 
climate change is leading to an increase in precipitation efficiency. 
“Sometimes taking the average is a bad idea,” Studholme said. “If you 
were leaving New York and you wanted to go to Mexico and someone in the 
back seat said, ‘You’ve got to go South,’ and then another guy goes, 
‘You’ve got to go North,’ and you split the difference, you end up in 
Los Angeles which is not where you wanted to go.”

By focusing on the group of climate models that most realistically 
simulate the actual physics of raindrops, Studholme’s study found that 
the average climate model likely underestimates how extreme 
precipitation will change in response to global warming. It’s possible 
that there will be a twofold increase in the volume of extreme rainfall 
in the 21st century compared to what previous studies estimate, he said, 
which would help explain why the globe is already seeing such intense 
and unprecedented rainstorms. “So a very significant increase in how 
much rainfall the atmosphere dumps out on the land every day at its most 
extreme,” Studholme said.

Chad Thackeray, a climate researcher at the University of California, 
Los Angeles, who was not involved in Studholme’s study, said the 
research was “super interesting and useful” because it identifies 
relatively small tweaks that climate modelers can make to improve their 
simulations. In other words, we’re getting closer to successfully using 
climate models to understand how rain works and how climate change is 
influencing it.

Thackeray published his own study in April that looks at a related piece 
of the rain puzzle: how frequent intense rain will become as climate 
change accelerates. In order to obtain his results, Thackeray also had 
to weed through climate models to find the simulations that most 
accurately showed how warming is already influencing precipitation. He 
found that extreme rainfall will occur about 30 percent more often by 
the end of the century, compared to how often it happens right now, 
under a medium-emissions scenario — if humans reduce greenhouse gas 
emissions to some extent instead of continuing on business as usual.

“There’s a lot of work that’s trying to untangle why climate models 
developed around the world will give slightly different answers to a 
question,” Thackeray said. “There’s been a lot of progress in recent 
decades, but once you get to highly impactful, extreme events that are 
very rare, we find that there’s still significant uncertainty.” 
Studholme and Thackeray’s studies get us a couple of steps closer to 
clearing up that uncertainty. And they both point to the unfortunate 
reality that rain is going to get more extreme as the planet warms.

The good news is that there are solutions that governments can invest in 
to protect citizens from flooding, starting right now. Two things 
lawmakers can do to help people prepare for extreme rainfall is fund 
initiatives that harden home infrastructure, such as rooftops, and 
improve drainage systems so that water has somewhere to go instead of 
pooling when it hits the ground. Though much of the United States is 
unprepared for extreme flooding events and other climate-related 
disasters, states are beginning to think seriously about how to become 
more resilient. And the federal government has been freeing up money for 
those efforts. The bipartisan infrastructure bill passed by Congress 
last year allocates funding to states to harden transportation 
infrastructure against climate change, create loan funds for resilience 
projects, upgrade old sewer systems, and more.

“That’s the silver lining,” Studholme said. “We already have the 
technology to do this.”
https://grist.org/extreme-weather/extreme-rainfall-will-be-worse-and-more-frequent-than-we-thought-according-to-new-studies/



/[The news archive - looking back]/
/*July 22, 2022*/
July 22, 2013: Rep. Rush Holt (D-NJ), a carbon-tax advocate running for 
the seat left vacant by the passing of Sen. Frank Lautenberg (D-NJ), 
shocks the Washington establishment by bluntly stating that "millions 
will die" if something is not done to address carbon pollution. (Rep. 
Holt would go on to lose the Democratic Senate primary to Newark, NJ 
mayor Cory Booker, who won the seat in the general election.)

http://www.youtube.com/watch?v=Y_O4nEMAtP4&sns=em

http://www.politifact.com/new-jersey/statements/2013/jul/28/rush-holt/rush-holt-warns-millions-will-die-climate-change-g/


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