Monday, December 11, 2017
“The Worst Drought in 1200 Years”
That’s one assessment
shared by more than a few California climate experts. But as California faces a
recession that will be triggered by a very hostile GOP tax reform act with blue
states in the cross-hairs, Californians - as well as the entire Western United
States - also face a very gloomy official federally-funded forecast on the
economy-killing drought yet to come. All this as hot dry Santa Ana winds
extends the worst fire season in California’s recorded history to Ventura,
Santa Barbara, Orange, San Diego and Los Angeles counties [see above picture],
destroying hundreds of thousands of acres and hundreds (maybe thousands) of
homes in December, well past any notion of a traditional fire season (in what
should be the beginning of Southern California’s rainy season), the long term
prognosis is even more disturbing. This massive devastation, heavily
exacerbated by global climate change, is now described by California’s
governor, Jerry Brown, as the “new normal,” an absolutely terrifying thought.
“California could be hit
with significantly more dangerous and more frequent droughts in the near future
as changes in weather patterns triggered by global warming block rainfall from
reaching the state, according to new research led by scientists at Lawrence
Livermore National Laboratory.
“Using complex new
modeling, the scientists have found that rapidly melting Arctic sea ice now
threatens to diminish precipitation over California by as much as 15% within 20
to 30 years. Such a change would have profound economic effects in a state where
the most recent drought drained several billion dollars out of the economy,
severely stressed infrastructure and highlighted how even the state most
proactively confronting global warming is not prepared for its fallout.
“The latest study adds a
worrying dimension to the challenge California is already facing in adapting to
climate change, and shifts focus to melting polar ice that only recently has
been discovered to have such a direct, potentially dramatic impact on the West
Coast. Though climate scientists generally agree that the increased
temperatures already resulting from climate change have seriously exacerbated
drought in California, there has been debate over whether global warming would
affect the amount of precipitation that comes to California.
“The study, published
Tuesday [12/5] in the journal Nature Communications, provides compelling
evidence that it would. The model the scientists used homed in on the link
between the disappearance of sea ice in the Arctic and the buildup of high
ridges of atmospheric pressure over the Pacific Ocean. Those ridges push winter
storms away from the state, causing drought.
“The scientists found
that as the sea ice goes away, there is an increase in the formation of ridges…
‘Our design was aimed at looking at what will happen in 20 to 30 years, when
the Arctic becomes ice-free in the summer,’ said Ivana Cvijanovic, the lead
climate scientist on the study. ‘It is coming soon. We want to understand what
the impact would be.... The similarities between what will happen and [how
weather patterns caused] the most recent drought are really striking.’…
“The study is yet another
by federally funded researchers that finds the failure to more rapidly diminish
greenhouse gas emissions could have a serious effect on California and other
parts of the country. The findings contrast starkly with Trump administration
policy on warming, which ignores the mainstream scientific consensus that human
activity is driving it. The administration has been working aggressively to
unravel Obama-era action on climate change, withdrawing from the Paris
agreement that seeks to limit its impact, dismantling restrictions on power
plant emissions, and signaling that it will relax vehicle mileage rules that
are a crucial component to addressing global warming.
“The warnings about the
impact of melting sea ice on California are being embraced by some prominent
climate scientists. They say that while the study is just one of multiple
models being used to project global warming’s effects, it is bolstered by other
studies that have signaled a connection between the ice melt in the Arctic and
the buildup of atmospheric ridges affecting California. Michael Mann, director
of the Earth System Science Center at Pennsylvania State University, said in an
email that it paints a sobering picture for the Golden State.
“‘As we learn more about
the subtleties in the dynamics of climate change, we are learning that certain
climate change impacts, like California drought, may be far worse than we had
previously thought,’ Mann wrote. ‘It also means that, when it comes to water
resource issues in California, the impacts of climate change may exceed our
adaptive capacity. That leaves only mitigation — doing something about climate
change — as a viable strategy moving forward.’” Los Angeles Times, December
5th.
California is the
nation’s major source of fruits and vegetables, and not only would such an
amplified drought be devastating for the state, but rising food costs would
negatively impact the entire country. The heavy regional rains in the 2016-17
season seem to have been nothing more than a momentary respite from the
continued ravages of global climate change. It is little wonder that West Coast
governors are mounting their own mutually-agreed commitments to combat man-induced
warming, even as Washington, D.C. has officially isolated the United States as
the lone climate-change-denying nation on earth.
“Gov. Jerry Brown has
been taking a lead globally in confronting climate change, warning that the
Trump administration’s approach is reckless and defies science. He traveled
last month to a United Nations climate conference in Bonn, Germany, to meet
with world leaders and send the signal that much of the nation is moving to act
on climate change, even if President Trump is not.
“Brown is helping lead a
coalition of state and local governments that is vowing to reduce emissions
enough to meet the entire country’s obligation under the Paris agreement, which
President Obama signed last year.
“But the Trump
administration’s retreat threatens to substantially slow the rate at which U.S.
climate emissions decline. And even if all commitments made in the Paris
agreement are kept, climate scientists say the Arctic ice situation would still
be dire.
“‘This is happening very
quickly,’ said Noah Diffenbaugh, a climate scientist at Stanford University.
‘The change is dramatic, and it is taking place faster than had been projected
by climate models.’… Diffenbaugh said the study is a breakthrough for climate
researchers who have been struggling to pinpoint the impacts of melting Arctic
ice.” LA Times. It seems that defying Donald Trump and his bevy of elected and
appointed climate-change-denying cronies has become an absolute matter of
survival for those of us on the West Coast.
I’m
Peter Dekom, and for most of us on the Left Coast, “resist” has taken on a life
and death meaning.
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