Climate Change News & Discussions

User avatar
wjfox
Site Admin
Posts: 8732
Joined: Sat May 15, 2021 6:09 pm
Location: London, UK
Contact:

Re: Climate Change News & Discussions

Post by wjfox »

weatheriscool wrote: Mon Dec 19, 2022 3:28 am
Solar and wind aint reliable
I refer you to: viewtopic.php?p=30481#p30481
User avatar
wjfox
Site Admin
Posts: 8732
Joined: Sat May 15, 2021 6:09 pm
Location: London, UK
Contact:

Re: Climate Change News & Discussions

Post by wjfox »





User avatar
caltrek
Posts: 6509
Joined: Mon May 17, 2021 1:17 pm

Re: Climate Change News & Discussions

Post by caltrek »

Big Oil Conspired to Deceive the Public, Claims Climate Racketeering Lawsuit
by Nina Lakhani
December 21, 2022

Introduction:
(Mother Jones) The same racketeering legislation used to bring down mob bosses, motorcycle gangs, football executives and international fraudsters is to be tested against oil and coal companies who are accused of conspiring to deceive the public over the climate crisis.

In an ambitious move, an attempt will be made to hold the fossil fuel industry accountable for “decades of deception” in a lawsuit being brought by communities in Puerto Rico that were devastated by Hurricane Maria in 2017.

“Puerto Rico is one of the most affected places by climate change in the world. It is so precariously positioned—they get hit on all fronts with hurricanes, storm surge, heat, coral bleaching—it’s the perfect place for this climate litigation,” said Melissa Sims, senior counsel for the plaintiffs’ law firm Milberg.

The 1970 Racketeer Influenced and Corrupt Organizations (RICO) Act was originally intended to combat criminal enterprises like the mafia, but has since been used in civil courts to litigate harms caused by opioids, vehicle emissions and even e-cigarettes as organized crime cases.

Now, the first-ever climate change RICO case alleges that international oil and coal companies, their trade associations, and a network of paid think tanks, scientists and other operatives conspired to deceive the public—specifically residents of Puerto Rico—about the direct link between their greenhouse gas-emitting products and climate change.
Read more here: https://www.motherjones.com/politics/2 ... rto-rico/
Don't mourn, organize.

-Joe Hill
User avatar
caltrek
Posts: 6509
Joined: Mon May 17, 2021 1:17 pm

Re: Climate Change News & Discussions

Post by caltrek »

EU Greenhouse Gas Emissions Down 22% Since 2008
by Gabriel Tynes
December 21, 2022

Introduction:
(Courthouse News) — The European Union cut greenhouse gas emissions by nearly a quarter in the 13 years between 2008 and 2021, led by notable reductions in industries such as mining, electrification and manufacturing. But in that time, emissions from both the manufacturing sector and individual households eclipsed the historically high volume produced by power suppliers.

The findings were released Wednesday by EU statistics agency Eurostat as part of its annual air emissions accounts, which monitor the emissions of some 64 economic activities, plus households.
Read more here: https://www.courthousenews.com/eu-gree ... nce-2008/
Don't mourn, organize.

-Joe Hill
weatheriscool
Posts: 12956
Joined: Sun May 16, 2021 6:16 pm

Re: Climate Change News & Discussions

Post by weatheriscool »

Overshooting climate targets could significantly increase risk for tipping cascades

by Potsdam Institute for Climate Impact Research
https://phys.org/news/2022-12-overshoot ... cades.html
Temporarily overshooting the climate targets of 1.5–2 degrees Celsius could increase the tipping risk of several Earth system elements by more than 70% compared to keeping global warming in line with the United Nations Paris Agreement range, a new risk analysis study by an international team of researchers shows. This tipping risk increases even if in the longer term the global temperature would stabilize within the Paris range. Avoiding an overshoot would hence limit the risks, the researchers conclude.

"We show that the risk for some tipping events could increase very substantially under certain global warming overshoot scenarios," explains Nico Wunderling, scientist at the Potsdam Institute for Climate Impact Research and lead-author of the study to be published in Nature Climate Change.

"Even if we would manage to limit global warming to 1.5 degrees after an overshoot of more than two degrees, this would not be enough as the risk of triggering one or more global tipping points would still be more than 50%. With more warming in the long-term, the risks increase dramatically."
weatheriscool
Posts: 12956
Joined: Sun May 16, 2021 6:16 pm

Re: Climate Change News & Discussions

Post by weatheriscool »

Greenland's glaciers are melting 100 times faster than estimated
By Stephanie Pappas
published 3 days ago
https://www.livescience.com/greenland-g ... melt-model

Greenland's glaciers are melting 100 times faster than previously calculated, according to a new model that takes into account the unique interaction between ice and water at the island’s fjords. 

The new mathematical representation of glacial melt factors in the latest observations of how ice gets eaten away from the stark vertical faces at the ends of glaciers in GGreenland. Previously, scientists used models developed in Antarctica, where glacial tongues float on top of seawater — a very different arrangement. 

"For years, people took the melt rate model for Antarctic floating glaciers and applied it to Greenland's vertical glacier fronts," lead author Kirstin Schulz, a research associate in the Oden Institute for Computational Engineering and Sciences at University of Texas at Austin, said in a statement. "But there is more and more evidence that the traditional approach produces too low melt rates at Greenland's vertical glacier fronts."

The researchers published their findings in September in the journal Geophysical Research Letters.

Researchers already knew their Antarctica-based understanding of Arctic glaciers was not a perfect match. But it's hard to get close to the edges of Greenland's glaciers, because they're situated at the ends of fjords — long, narrow inlets of seawater flanked by high cliffs — where warm water undercuts the ice. This leads to dramatic calving events where chunks of ice the size of buildings crumble into the water with little warning, creating mini-tsunamis, according to the researchers. 

Researchers led by physical oceanographer Rebecca Jackson of Rutgers University have been using robotic boats to get close to these dangerous ice cliffs and take measurements. They've done this at Alaska's LeConte Glacier as well as Greenland's Kangerlussuup Sermia. (An upcoming mission led by scientists at the University of Texas at Austin will send robotic subs to the faces of three west Greenland glaciers.) Jackon's measurements suggest that the Antarctica-based models massively underestimate Arctic glacial melt. LeConte, for example, is disappearing 100 times faster than models predicted. 
User avatar
wjfox
Site Admin
Posts: 8732
Joined: Sat May 15, 2021 6:09 pm
Location: London, UK
Contact:

Re: Climate Change News & Discussions

Post by wjfox »

weatheriscool wrote: Thu Dec 22, 2022 9:19 pm Greenland's glaciers are melting 100 times faster than estimated
By Stephanie Pappas
published 3 days ago
https://www.livescience.com/greenland-g ... melt-model

Greenland's glaciers are melting 100 times faster than previously calculated, according to a new model that takes into account the unique interaction between ice and water at the island’s fjords. 

The new mathematical representation of glacial melt factors in the latest observations of how ice gets eaten away from the stark vertical faces at the ends of glaciers in GGreenland. Previously, scientists used models developed in Antarctica, where glacial tongues float on top of seawater — a very different arrangement. 

"For years, people took the melt rate model for Antarctic floating glaciers and applied it to Greenland's vertical glacier fronts," lead author Kirstin Schulz, a research associate in the Oden Institute for Computational Engineering and Sciences at University of Texas at Austin, said in a statement. "But there is more and more evidence that the traditional approach produces too low melt rates at Greenland's vertical glacier fronts."

The researchers published their findings in September in the journal Geophysical Research Letters.

Researchers already knew their Antarctica-based understanding of Arctic glaciers was not a perfect match. But it's hard to get close to the edges of Greenland's glaciers, because they're situated at the ends of fjords — long, narrow inlets of seawater flanked by high cliffs — where warm water undercuts the ice. This leads to dramatic calving events where chunks of ice the size of buildings crumble into the water with little warning, creating mini-tsunamis, according to the researchers. 

Researchers led by physical oceanographer Rebecca Jackson of Rutgers University have been using robotic boats to get close to these dangerous ice cliffs and take measurements. They've done this at Alaska's LeConte Glacier as well as Greenland's Kangerlussuup Sermia. (An upcoming mission led by scientists at the University of Texas at Austin will send robotic subs to the faces of three west Greenland glaciers.) Jackon's measurements suggest that the Antarctica-based models massively underestimate Arctic glacial melt. LeConte, for example, is disappearing 100 times faster than models predicted. 

User avatar
wjfox
Site Admin
Posts: 8732
Joined: Sat May 15, 2021 6:09 pm
Location: London, UK
Contact:

Re: Climate Change News & Discussions

Post by wjfox »

weatheriscool
Posts: 12956
Joined: Sun May 16, 2021 6:16 pm

Re: Climate Change News & Discussions

Post by weatheriscool »

AI developed to monitor changes to the globally important Thwaites Glacier
https://phys.org/news/2023-01-ai-global ... acier.html
by University of Leeds
Scientists have developed artificial intelligence techniques to track the development of crevasses—or fractures—on the Thwaites Glacier Ice Tongue in west Antarctica.

A team of scientists from the University of Leeds and University of Bristol have adapted an AI algorithm originally developed to identify cells in microscope images to spot crevasses forming in the ice from satellite images. Crevasses are indicators of stresses building-up in the glacier.

Thwaites is a particularly important part of the Antarctic Ice Sheet because it holds enough ice to raise global sea levels by around 60 centimeters and is considered by many to be at risk of rapid retreat, threatening coastal communities around the world.

Use of AI will allow scientists to more accurately monitor and model changes to this important glacier.

Published today (Monday, January 9) in the journal Nature Geoscience, the research focused on a part of the glacier system where the ice flows into the sea and begins to float. Where this happens is known as the grounding line and it forms the start of the Thwaites Eastern Ice Shelf and the Thwaites Glacier Ice Tongue, which is also an ice shelf.

Despite being small in comparison to the size of the entire glacier, changes to these ice shelves could have wide-ranging implications for the whole glacier system and future sea-level rise.

The scientists wanted to know if crevassing or fracture formation in the glacier was more likely to occur with changes to the speed of the ice flow.
User avatar
wjfox
Site Admin
Posts: 8732
Joined: Sat May 15, 2021 6:09 pm
Location: London, UK
Contact:

Re: Climate Change News & Discussions

Post by wjfox »

Post Reply