Official Climate Change Thread

Micky Mikey

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Completely Terrifying': Study Warns Carbon-Saturated Oceans Headed Toward Tipping Point That Could Unleash Mass Extinction Event
"Once we're over the threshold...you're dealing with how the Earth works, and it goes on its own ride."

by
Julia Conley, staff writer

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ocean_6.jpg

The Atlantic coast near Galicia, Spain. A study by an MIT researcher warns that humans are pumping carbon into the world's oceans at a rate that could trigger a mass extinction event. (Photo: Paulo Brandao/flickr/cc)

The continuous accumulation of carbon dioxide in the planet's oceans—which shows no sign of stopping due to humanity's relentless consumption of fossil fuels—is likely to trigger a chemical reaction in Earth's carbon cycle similar to those which happened just before mass extinction events, according to a new study.

MIT geophysics professor Daniel Rothman released new data on Monday showing that carbon levels today could be fast approaching a tipping point threshold that could trigger extreme ocean acidificationsimilar to the kind that contributed to the Permian–Triassic mass extinction that occurred about 250 million years ago.

Rothman's new research comes two years after he predicted that a mass extinction event could take place at the end of this century. Since 2017, he has been working to understand how life on Earth might be wiped out due to increased carbon in the oceans.

"If we push the Earth system too far, then it takes over and determines its own response—past that point there will be little we can do about it."
—Timothy Lenton, University of Exeter

Rothman created a model in which he simulated adding carbon dioxide to oceans, finding that when the gas was added to an already-stable marine environment, only temporary acidification occurred.

When he continuously pumped carbon into the oceans, however, as humans have been doing at greater and greater levels since the late 18th century, the ocean model eventually reached a threshold which triggered what MIT called "a cascade of chemical feedbacks," or "excitation," causing extreme acidification and worsening the warming effects of the originally-added carbon.

Over the past 540 million years, these chemical feedbacks have occurred at various times, Rothman noted.

But the most significant occurances took place around the time of four out of the five mass extinction events—and today's oceans are absorbing carbon far more quickly than they did before the Permian–Triassic extinction, in which 90 percent of life on Earth died out.

The planet may now be "at the precipice of excitation," Rothman told MIT News.





On social media, one critic called the study's implications about life on Earth "completely terrifying."

The study, which was completed with support from NASA and the National Science Foundation, also notes that even though humans have only been pumping carbon into the oceans for hundreds of years rather than the thousands of years it took for volcanic eruptions and other events to bring about other extinctions, the result will likely be the same.

"Once we're over the threshold, how we got there may not matter," Rothman told MIT News. "Once you get over it, you're dealing with how the Earth works, and it goes on its own ride."

Other scientists said the study, which will be published this week in theProceedings of the National Academy of Sciences, represents a clear call for immediate action to drastically reduce the amount of carbon that is being pumped into the world's oceans. Climate action groups and grassroots movements have long called on governments to impose a moratorium on fossil fuel drilling, which pumps about a billion metric tons of carbon into the atmosphere every year.

"We already know that our CO2-emitting actions will have consequences for many millennia," says Timothy Lenton, a professor of climate change and earth systems science at the University of Exeter. "This study suggests those consequences could be much more dramatic than previously expected."

"If we push the Earth system too far," Lenton added, "then it takes over and determines its own response—past that point there will be little we can do about it
 

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OPEC Warns Climate Campaigners Are "Greatest Threat to Our Industry Going Forward."
OPEC will be made redundant by the coming renewable revolution and by our climate emergency.

by
Andy Rowell

7 Comments
greta_thunberg_0.jpeg

Swedish climate activist Greta Thunberg delivers her speech during the demonstration 'Fridays for Future' in Piazza del Popolo, on April 19, 2019 in Rome, Italy. (Photo: Antonio Masiello/Getty Images)

OPEC—which remains the largest oil cartel in the world—has a problem. It is sitting on vast reserves of oil, which are currently worth trillions and trillions of dollars.

But every day the more people that join the fight against the industry, forcing the UN, national and state governments, regulators, and increasingly the courts to act, the more that value goes down.

Eventually, OPEC will be sitting on a worthless pile of oil. When and if that happens, no one knows. By then OPEC will be no more: what is the point of a cartel for a commodity that no one really uses anymore? OPEC will be made redundant by the coming renewable revolution and by our climate emergency.

OPEC has been a target of activists for years. I remember when Greenpeace targeted the organization’s flagship meeting in Vienna in the early nineties.

But just as BP has finally conceded that it might not be able to burn all its oil, OPEC has now conceded that climate campaigners are “perhaps the greatest threat to our industry going forward”.

Speaking in Vienna, Mohammed Barkindo, who has just been re-appointed as Secretary General of OPEC, said due to our climate crisis “there is a growing mass mobilisation of world opinion… against oil”.

Barkindo added that the “mobilisation” against oil was “beginning to… dictate policies and corporate decisions, including investment in the industry”, according to the AFPnewswire.

Why this should be a sudden revelation could be deemed slightly worrying to anyone not living in an oil-industry soaked bubble.

Indeed, just this week a new report outlined how there were climate change related lawsuits in at least 28 countries, and the UK National Trust announced it was disinvesting its one billion pound portfolio from fossil fuels.

The writing has been on the wall for years, if not decades, and in many ways Barkindo is stating the obvious about what is happening. But his admission is a cause for celebration for those fighting the oil industry.

“Thank you!” tweeted teen climate activist, Greta Thunberg. “Our biggest compliment yet!”




Bill McKibben, co-founder 350.org, also tweeted,



Steve Kretzmann, the Director of Oil Change International was more cautious:

We are not winning, yet, but they realize that in fact we could. This is a dangerous moment. This industry and those that defend and serve it are dangerous. They kill. They murder. Wars for oil happen far too often (never and none would be good). They’re already trying to criminalize protest against them in the US – the world’s largest producer of oil and gas.

He added: People will continue to protest, because people who see the role of this industry in driving, and continuing to profit from, the climate crisis feel they have to. Will industry escalate to violence in response to protest? In many places around the world, they already have, in some cases decades ago. We remember, and we’re watching.

It is easy to see why Kretzmann urges caution in the scale of the task ahead. Twenty five years after I attended an OPEC conference to listen to climate deniers speak to the oil barons, the denial from OPEC continues. It is as if the science and evidence of the last twenty five years counts for nothing. Their ears and eyes are closed.

Barkindo went on to add that “Civil society is being misled to believe oil is the cause of climate change”.

And in words reminiscent of BP when it went “Beyond Petroleum” twenty years ago and then invested a tiny amount in renewables, Barkindo added that “We believe this industry is part of the solution to the scourge of climate change.”

OPEC could be part of the solution. It could stop producing oil tomorrow and start pouring the billions of dollars secretly squirrelled away in offshore bank accounts to fund the renewable revolution. But that won’t happen.
 

Snoopy Loops

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RT is NOT the study, but if that makes you feel better.:yeshrug:

Also, RT is far more honest where U.S. politics etc are concerned so, there's no need to laugh.



The paper does not even address the greenhouse gas mechanism. Its one thing to say that the IPCC model is incomplete, its another thing to say its complete garbage.
 
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Micky Mikey

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Propaganda

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Finnish study finds ‘practically no’ evidence for man-made climate change

To be clear this new study flat out disproves man made climate change. It calls out the IPCC and all.

Anthropogenic global warming is as fake of news as it comes.

There is a link to the actual study in the article.

what do you get out of being such a contrarian? this an honest question. i'm legitimately wondering.

another thing is, is there anything that science, and the media, and government, and whoever else y'all are constantly rallying against says that you actually do believe? and if so, why?

ii'm genuinely curious.
 

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Straiya

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The Hill
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"This new blanket exemption from the public records law will make it nearly impossible for people to challenge EPA’s decisions to keep documents secret. If the EPA says there are no records because a political appointee has determined, illegally, that the documents are 'not responsive' to the public records request, then the requestor won’t know that the records even exist.

That makes a mockery of the Freedom of Information Act."


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EPA's new public records rule lets Trump administration pollute in private
 

Micky Mikey

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NEWS

ENVIRONMENT & HEALTH
Over One-Tenth of Global Population Could Lack Drinking Water by 2030
2019_0701-drought-faucet-1200x800.jpg

As civilization faces existential threats, Trump is trying to end long-term climate studies. Meanwhile, the global water crisis spurred by climate disruption continues to unfold dramatically.
SAWITREE PAMEE / EYEEM
BY
Dahr Jamail,
Truthout
PUBLISHED
July 1, 2019




PART OF THE TRUTHOUT SERIES

Climate Disruption Dispatches
Outside on my front porch, alder chip smoke billows out of my small smoker. The racks inside the tin smoker are filled with wild-caught Alaskan Coho salmon, provided to me by my friend Jonathan. He and his wife take their three daughters in their fishing boat and head north from our town on the north coast of Washington State’s Olympic Peninsula for the late summer salmon runs in Southeastern Alaska. They return with a hull full of frozen fish, for those of us here lucky enough to have placed our orders for it.

Several friends here attached to the land where I live are also outside, busy doing their own things: one is preparing his sailboat to launch in a week, another is working in the garden, two others are pitching a tent, another is out working his summer job with the Washington Conservation Association, and still another is reading and contemplating what she might write in the next column we co-author for Truthout.

It is truly idyllic. A dream I’ve had for decades is finally coming true: I’m living in a way that is close to the Earth, which enables me to minimize my carbon footprint. I’m growing much of my own food and living in community with like-minded people.

recent study published in the Proceedings of the National Academy of Sciences showed that sea-level rise could be twice as bad as previously expected, due to accelerated melting in the Antarctic and Greenland. Instead of the previous worst-case scenario of 1 meter by 2100, the study has doubled that figure. Several scientists this writer has interviewed believe the realistic figure of sea level rise by 2100 will be even higher than this recent study’s prediction.

Another report showed how the state of Florida could be facing a $76 billion bill to mitigate and adapt to climate crisis impacts by just 2040, mostly from rising sea levels.

To give you an idea of how far along we already are in this crisis, in some areas of China, fruit trees have to be pollinated by hand due to lack of pollinators. Climate disruption is a major contributing factor toward the loss of insects around the planet.

The Arctic, our proverbial canary in the climate coalmine, just saw its hottest May ever recorded. Coastal erosion of permafrost is happening at a rate of up to one meter every day, and the current rate of coastal erosion is already six times higher than the historical rate.

In Siberia, carbon-laden permafrost has warmed by 1.6 degrees Fahrenheit (1.6°F) in just the last 10 years alone. This is an ominous sign, for as the permafrost thaws it releases carbon and methane, making this one of the most dangerous feedback loops in the climate crisis, given that permafrost around the globe contains twice the amount of carbon that is already in the atmosphere. In fact, it has now been shown that the permafrost is thawing 70 years sooner than previously predicted.

According to a 2017 study, tundra in Alaska is already warming up so quickly that it has become a net emitter of CO2 ahead of schedule — rather than sequestering carbon, as it has historically done. Thawing is occurring so rapidly in the Arctic now, sinkholes are becoming increasingly common across the region.

To make matters worse, Arctic sea-ice extent for early June was at a record low, and the ice could be on track now for a record melt year at the current trajectory.

Underscoring the severity of the crisis, yet another well-researched report has recently been released warning the end of human civilization could be on the horizon if we don’t change course. In the report, climate scientists predict 2050 as the year we face complete climate catastrophe.

The authors predict, “More than a billion people may need to be relocated, and in high-end scenarios, the scale of destruction is beyond our capacity to model, with a high likelihood of human civilisation coming to an end.”

They found that by 2050, total ecological collapse could bring about huge social consequences like “increased religious fervor to outright chaos.” The report warns that catastrophic environmental disasters could result in widespread pandemics, forced migrations from places that no longer support humans, and the spread of war over diminished resources.

The report describes one possible scenario, in which “planetary and human systems (reach) a ‘point of no return’ by mid-century in which the prospect of a largely uninhabitable Earth leads to the breakdown of nations and the international order.”

It would be an error to think there is that much time before this kind of breakdown. If you live on the delta in Bangladesh, or in Paradise, California, or on the coastline of northern or western Alaska, the crisis is already upon you.

Earth
Extreme weather events fueled by human-caused climate disruption are already severely affecting food production, causing food price shocks in the U.S. A report focusing on the recent flooding in the Midwest illustrated how rain-sodden fields across the Corn Belt, along with massive numbers of drowned livestock, are contributing factors. This issue is only set to deepen.

Meanwhile, despite the fact that human-caused climate disruption is, in many ways, a geoengineering experiment gone badly, ongoing discussion within the scientific community of using geoengineering to completely solve it continues to escalate.

Despite the clear dangers of unforeseen consequences, generating conflict between nations, and the immorality inherent in the idea of attempting to control parts of the biosphere, some scientists are proposing strategies like spraying aerosols of sulphate particles into the stratosphere and using tall ships to pump salt particles from the ocean into polar clouds to brighten them in order to attempt to refreeze warming parts of the polar regions.

Meanwhile, experts from 27 different national science academies released a report showing how climate disruption is already negatively impacting people’s health via heatwaves and floods, but also indirectly by things like the spreading of mosquito-borne diseases and deleterious mental health impacts.

“There are impacts occurring now [and], over the coming century, climate change has to be ranked as one of the most serious threats to health,” Andrew Haines, a co-chair of the report for the European Academies’ Science Advisory Council told The Guardian.

Water
The endangered North Atlantic Right Whale’s already scant population is declining, and this decline has been linked directly to oceanic warming, which is of course, being caused by climate disruption, according to a recent report. Warming oceans have caused the whales’ food supply to shift locations, causing them to have to travel farther to find it, along with moving them into areas closer to shipping lanes which are dangerous for them.

Meanwhile, dozens of grey whales have been found dead and washing up onto beaches up and down the west coast, from California to well up into Canada, causing U.S. scientists to launch an investigation into the unusually high mortality event. Scientists believe the number found dead is but a fraction of the actual number, since most of the dead whales will not wash ashore.

“Many of the whales have been skinny and malnourished, and that suggests they may not have gotten enough to eat during their last feeding season in the Arctic,” National Oceanic and Atmospheric Administration (NOAA) spokesman Michael Milstein told reporters of the mortality event.

Also, hundreds of “severely emaciated” dead puffins have washed ashore at St. Paul Island in the Pribilofs of Alaska, believed to have starved to death from the warming waters they forage from having less food available for them to eat. Estimates of the total number of dead puffins range from 3,000 to 9,000.

A stunning study published in the Proceedings of the National Academy of Sciences showed that warming oceans will likely reduce the oceanic content of fish and other marine life by one-sixth by the end of this century. The study warned that for every 1 degree Celsius (1°C) warming of the world’s oceans, the total mass of sea animals is projected to drop by five percent.

Meanwhile, the global water crisis spurred by climate disruption continues to unfold dramatically. A recent report warned that by 2030, half of the entire population of India (roughly 700 million people, or to put another way, one tenth of the entire population of the globe), may lack adequate drinking water. (This is, of course, in addition to all the other places in which drinking water supplies will be inadequate.) The same report warned that the cities of Bangalore and New Delhi could run out of useable groundwater by as early as 2020.


Read the rest here
Over One-Tenth of Global Population Could Lack Drinking Water by 2030
 
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