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<font size="+1"><i>July 28, 2017</i></font><br>
<br>
<b><a moz-do-not-send="true"
href="http://www.climatecodered.org/2017/07/paris-15-2c-target-far-from-safe-say.html">Paris
1.5-2 degrees C target far from safe, say world-leading
scientists</a></b><br>
by David Spratt, first published at Renew Economy<br>
The Paris climate agreement goal of limiting global warming to 1.5
to 2 degrees Celsius (degreesC) is well above temperatures
experienced during the Holocene - period of human settlement over
the last 11,700 years - and is far from safe because "if such
temperature levels are allowed to long exist they will spur "slow"
amplifying feedbacks… which have potential to run out of humanity's
control."<br>
That's the message from some of the world best climate scientists,
including former NASA climate chief, James Hansen, in a newly paper,
"Young people's burden: requirement of negative CO2 emissions",
published in Earth System Dynamics this month.<font size="-1"
color="#666666"><br>
<a class="moz-txt-link-freetext"
href="http://www.climatecodered.org/2017/07/paris-15-2c-target-far-from-safe-say.html">http://www.climatecodered.org/2017/07/paris-15-2c-target-far-from-safe-say.html</a><br>
<a class="moz-txt-link-freetext"
href="http://reneweconomy.com.au/paris-1-5-2c-target-far-from-safe-say-world-leading-scientists-81532/">http://reneweconomy.com.au/paris-1-5-2c-target-far-from-safe-say-world-leading-scientists-81532/</a><br>
<a class="moz-txt-link-freetext"
href="http://www.resilience.org/stories/2017-07-26/a-failure-of-imagination-on-climate-risks/">http://www.resilience.org/stories/2017-07-26/a-failure-of-imagination-on-climate-risks/</a><br>
</font> <br>
<br>
<b><a moz-do-not-send="true"
href="https://www.washingtonpost.com/news/wonk/wp/2017/07/27/how-the-climate-crisis-could-become-a-food-crisis-overnight/?utm_term=.29728850734e">How
the climate crisis could become a food crisis overnight.</a></b><br>
By Elizabeth Winkler Washington Post Jul 27<br>
The world's food system is particularly vulnerable to freak weather
- the exact type of event climate change is making more common.
more…<br>
Now a <a moz-do-not-send="true"
href="https://www.chathamhouse.org/sites/files/chathamhouse/publications/research/2017-06-27-chokepoints-vulnerabilities-global-food-trade-bailey-wellesley.pdf">new
report by Chatham House</a>, a London-based think tank, details
how climate change further threatens that network, as the type of
extreme weather event that knocked out the Russian harvest becomes
all the more common.<br>
Global food security depends on trade in just four crops: maize,
wheat, rice and soybeans. The first three account for 60 percent of
the world's food energy intake. The fourth, soybeans, is the world's
largest source of animal protein feed, making up 65 percent of
global protein feed supply. Their production is concentrated in a
handful of exporting countries, including the United States, Brazil
and the Black Sea region, from which they are flowing at
ever-greater volumes. Between 2000 and 2015, global food trade grew
by 127 percent to 2.2 billion metric tons - and growth rates are
projected to keep increasing.<br>
But the movement of these crops hinges on just 14 "choke-point"
junctures on transport routes through which exceptional volumes of
trade pass.<br>
Imagine the following frightening-yet-plausible scenario: <br>
<font color="#666666"><i><a class="moz-txt-link-freetext"
href="https://www.washingtonpost.com/news/wonk/wp/2017/07/27/how-the-climate-crisis-could-become-a-food-crisis-overnight/">https://www.washingtonpost.com/news/wonk/wp/2017/07/27/how-the-climate-crisis-could-become-a-food-crisis-overnight/</a></i></font><br>
<br>
<br>
<b><a
href="https://tamino.wordpress.com/2017/07/27/understanding-sea-level-rise/">Understanding
Sea Level Rise</a></b><br>
Tamino<br>
Sea level rise is complicated. But some people think its future
course is oh so simple, and the recent visit by a certain Mr.
Wakefield showed just how determined he is to stick with what I call
the "simpleton's view."<br>
It started with a post I did about Willis Eschenbach's mistaken
claim about sea level rise at individual tide gauge stations, that
they show steady rise at a constant rate, surely not speeding up
(accelerating). Looking at data from 63 tide gauges around the
world, Eschenbach said "NOT ONE of these 63 full tidal datasets
shows statistically significant acceleration …" I showed that Willis
was wrong, using exactly the same data he had used. To his credit,
Willis didn't keep insisting he was right about that. He still
maintains that any acceleration you can find is unimportant (I
disagree), but at least he didn't insist that his initial analysis
was right after it had been shown wrong.<br>
And that's another one of the problems - that people (including
voters) don't take the issue seriously enough unless it hits them in
the face in their own home towns. The sad part is that by the time
that happens, we've already wasted decades when we could have been
working to reduce the damage. Because scientists have been warning
us about this, for 30 years now. They say that "forewarned in
forearmed," but when early warning is discredited by know-nothings,
too many people take the easy way out and set the issue aside.
Instead of being forearmed, we end up disarmed, just when we most
need to prepare for what's to come.<br>
<font color="#666666"><i><a class="moz-txt-link-freetext"
href="https://tamino.wordpress.com/2017/07/27/understanding-sea-level-rise/">https://tamino.wordpress.com/2017/07/27/understanding-sea-level-rise/</a></i></font><br>
<br>
<br>
<b><a moz-do-not-send="true"
href="http://mashable.com/2017/07/26/antarctic-iceberg-moves-away-larsen-c-new-cracks/#J9atuDznoOqf">Mammoth
Antarctic iceberg is on the move, while the ice shelf it left
behind grieves its loss</a></b><br>
The Delaware-sized iceberg that calved off the Larsen C Ice Shelf in
Antarctica sometime between July 10 and July 12 is drifting farther
from its former home, while breaking into smaller pieces.
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More importantly, new cracks are appearing in the ice shelf that
could portend the creation of additional icebergs and the possible
destabilization of larger parts of the ice sheet, which holds back
land-based ice from flowing into the sea and raising sea levels. <br>
Satellite imagery from the Landsat 8 satellite as well as the the
camera aboard the European Space Agency's (ESA) Sentinel-1 satellite
are helping scientists keep tabs on the gargantuan iceberg despite
the shroud of darkness during the Antarctic winter season. <br>
<font size="-1"><a class="moz-txt-link-freetext"
href="http://mashable.com/2017/07/26/antarctic-iceberg-moves-away-larsen-c-new-cracks/#J9atuDznoOqf">http://mashable.com/2017/07/26/antarctic-iceberg-moves-away-larsen-c-new-cracks/#J9atuDznoOqf</a></font><br>
<br>
<br>
<b><a moz-do-not-send="true"
href="http://www.nature.com/news/huge-landslide-triggered-rare-greenland-mega-tsunami-1.22374">Huge
landslide triggered rare Greenland mega-tsunami</a></b><br>
By Quirin Schiermeier Nature Jul 27<br>
Scientists hope studying last month's deadly event will improve
modelling of rockslides that could become more frequent with climate
change.<br>
One of the tallest tsunamis in recorded history - a 100-metre-high
wave that devastated a remote settlement in Greenland last month -
was caused, unusually, by a massive landslide, researchers report. <br>
Seismologists returning from studying the rare event ... warn that
such events could become more frequent as the climate warms.<br>
The landslide occurred on the evening of 17 June, in the barren
Karrat Fjord on the west coast of Greenland. It caused a sudden
surge of seawater that wreaked havoc in the fishing village of
Nuugaatsiaq, located on an island within the fjord about 20
kilometres away (see 'Greenland tsunami'). The wave washed away
eleven houses, and four people are presumed dead.<br>
The slide was so large that it generated a seismic signal suggestive
of a magnitude-4.1 earthquake, confounding initial efforts to
identify its cause, says Trine Dahl-Jensen, a seismologist at the
Geological Survey of Denmark and Greenland. But more careful
examination indicated no significant tectonic activity just before
the landslide.<br>
A research team that visited the site earlier this month found that
a large volume of rock had plunged - probably spontaneously - from
one of the steep sides of the fjord into the water 1,000 metres
below, and shattered chunks of a glacier. That disturbance pushed
water levels up by more than 90 metres along the coastline on the
same side as the slide. And although the tsunami dissipated quickly
as it crossed the deep, six-kilometre-wide fjord, it still had
enough energy to send water 50 metres up the hillside opposite. The
team also measured an increase in water levels of about 10 metres on
shorelines 30 kilometres away.<br>
"Landslide-generated tsunamis are much more locally limited than
tsunamis produced by sea quakes, but they can be massively tall and
devastating in the vicinity," says Hermann Fritz, an environmental
engineer at the Georgia Institute of Technology in Atlanta who led
the research team...<br>
Fritz adds that the Greenland event is reminiscent of a 1958 tsunami
- the tallest ever recorded1 - in Lituya Bay, Alaska. A
magnitude-8.3 quake triggered a landslide into a narrow fjord and
the bay's shallow water, causing the water to rise 500 metres above
the normal tide level (a measure known as run-up). By comparison,
the 2011 quake-triggered tsunami in Japan, which killed more than
16,000 people and caused the Fukushima nuclear disaster, reached
only about 40 metres at its maximum height.<br>
And in 2015, a landslide-generated tsunami in the Taan Fjord in Icy
Bay, Alaska, caused a 300-metre run-up of water, says Synolakis. <br>
"Earlier, we didn't really believe such extremes were possible," he
says. "But with global warming and sea level rise, such landslides
are going to be far more common."<br>
<font size="-1" color="#666666"><a class="moz-txt-link-freetext"
href="http://www.nature.com/news/huge-landslide-triggered-rare-greenland-mega-tsunami-1.22374">http://www.nature.com/news/huge-landslide-triggered-rare-greenland-mega-tsunami-1.22374</a></font><br>
<b><br>
<a href="https://www.youtube.com/watch?v=amWshLXe74s">Video
Captures Moment When Tsunami Hits Greenland's West Coast</a><br>
</b><a class="moz-txt-link-freetext"
href="https://www.youtube.com/watch?v=cZQ6IBa_N7A">https://www.youtube.com/watch?v=cZQ6IBa_N7A</a><br>
<a class="moz-txt-link-freetext"
href="http://news.nationalgeographic.com/2017/06/video-shows-greenland-deadly-tsunami-landslide-spd/">http://news.nationalgeographic.com/2017/06/video-shows-greenland-deadly-tsunami-landslide-spd/</a><b><br>
</b> <a class="moz-txt-link-freetext"
href="https://www.youtube.com/watch?v=amWshLXe74s">https://www.youtube.com/watch?v=amWshLXe74s</a><br>
<a href="http://www.bbc.com/news/world-europe-40347552">In pictures:
Greenland tsunami aftermath</a><br>
<a class="moz-txt-link-freetext"
href="http://www.bbc.com/news/world-europe-40347552">http://www.bbc.com/news/world-europe-40347552</a><br>
<br>
<a
href="http://www.independent.co.uk/environment/climate-change-scientists-greenland-ice-sheet-melt-faster-worried-algae-a7858876.html"><b>Climate
change scientists 'very worried' Greenland ice sheet might start
to melt 'faster and faster'</b></a><br>
Only a small amount has to melt to threaten millions in coastal
communities around the world'<br>
Scientists are "very worried" that the Greenland ice sheet might
start to melt "faster and faster", a leading scientist has said.<br>
The problem is that the warmer weather is allowing more dark algae
to grow on the ice.<br>
Because ice is white, it reflects much of the sun's energy, but dark
algae absorb the heat, increasing the rate of melting.<br>
The Greenland ice sheet is up to 3km thick and would raise sea
levels by seven metres if it all melted into the sea. The current
rate of melting is adding about 1mm a year to the global average sea
level.<br>
Now a team of scientists has begun a new five-year research project,
called Black and Bloom, to discover how algal growth might affect
this, BBC News reported.<br>
<a class="moz-txt-link-freetext"
href="http://www.independent.co.uk/environment/climate-change-scientists-greenland-ice-sheet-melt-faster-worried-algae-a7858876.html">http://www.independent.co.uk/environment/climate-change-scientists-greenland-ice-sheet-melt-faster-worried-algae-a7858876.html</a><br>
<br>
<br>
<b><a moz-do-not-send="true"
href="https://www.theguardian.com/environment/climate-consensus-97-per-cent/2017/jul/27/a-profile-of-award-winning-climate-scientist-kevin-trenberth">A
profile of award-winning climate scientist Kevin Trenberth</a></b><br>
Kevin Trenberth - recent award winner - is one of the world's
foremost climate scientists<br>
The American Geophysical Union - the pre-eminent organization of
Earth scientists - presents annual awards to celebrate the
achievements of scientists. The awards, which are often named after
famous historical scientists, reflect the contributions to science
in the area of the award namesake. With the 2017 award winners just
announced, it's appropriate to showcase one of the winners here. <br>
The 2017 winner of the Roger Revelle medal is Dr. Kevin E.
Trenberth. One of the most well-known scientists in the world, he is
certainly the person most knowledgeable about climate change that I
know.<br>
But perhaps Dr. Trenberth won the award because of the sheer volume
and impact of his scholarship. He is closing in on 70,000 citations
to his work. This puts him near the top of the list worldwide for
impact.<br>
Or maybe he won because of his tireless efforts in service to the
scientific community, with leadership roles in the IPCC, the World
Climate Research Programme, NOAA, and other groups. Or lastly, it
could be because he is tireless as both a researcher and a
communicator. Dr. Trenberth can be heard or read almost weekly in
major newspapers, magazine articles, radio and television shows.
When reporters need complex climate science explained, he is a go-to
person, and has been for years....<br>
Why would I write about this aspect of Trenberth's career? Because
it shows that he has suffered slings and arrows for his tireless
work. He has spent his career being honest about the limits of our
knowledge of the Earth's climate but also being clear about our
certainty of human-caused climate change. His reward for this
tireless service to society has been attacks on his research and his
person. However, he has been impeccable in character and
scholarship. The ill-advised who tangle with Trenberth have
discovered they are on the short end of the intellectual battle.<br>
It is my view that the AGU, by granting awards such as these to
scientists, effectively encourage others to reach the highest
standards in their profession.<br>
<font size="-1" color="#666666"><a class="moz-txt-link-freetext"
href="https://www.theguardian.com/environment/climate-consensus-97-per-cent/2017/jul/27/a-profile-of-award-winning-climate-scientist-kevin-trenberth">https://www.theguardian.com/environment/climate-consensus-97-per-cent/2017/jul/27/a-profile-of-award-winning-climate-scientist-kevin-trenberth</a></font><br>
<br>
<br>
<b><a moz-do-not-send="true"
href="http://www.theonion.com/video/onion-reviews-inconvenient-sequel-truth-power-56495">(sarcasm)
The Onion Reviews 'An Inconvenient Sequel: Truth To Power'</a></b><br>
The Onion's movie critic Peter K. Rosenthal reviews 'An
Inconvenient Sequel' in this week's Film <br>
<i><font size="-1"><a class="moz-txt-link-freetext"
href="http://www.theonion.com/video/onion-reviews-inconvenient-sequel-truth-power-56495">http://www.theonion.com/video/onion-reviews-inconvenient-sequel-truth-power-56495</a></font></i><br>
<br>
<br>
<font size="+1"><b><a moz-do-not-send="true"
href="http://www.bradblog.com/?p=9453">This Day in Climate
History July 28, 2012 </a>- from D.R. Tucker</b></font><br>
July 28, 2012: Physicist Richard Muller, long known for accusing
climate scientists of data manipulation, writes an opinion piece for
the New York Times acknowledging that he cannot disprove the
monumental evidence pointing to human activity as the main driver of
climate change. Days later, in an interview with Betsy Rosenberg,
Muller continues to smear acclaimed climate scientist Michael E.
Mann.<br>
<a class="moz-txt-link-freetext"
href="http://www.nytimes.com/2012/07/30/opinion/the-conversion-of-a-climate-change-skeptic.html?pagewanted=all">http://www.nytimes.com/2012/07/30/opinion/the-conversion-of-a-climate-change-skeptic.html?pagewanted=all</a><br>
<a class="moz-txt-link-freetext"
href="http://www.bradblog.com/?p=9453">http://www.bradblog.com/?p=9453</a><br>
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