Climate change tipping point could be coming sooner than we think: study

Climate change tipping point could be coming sooner than we think
Limpopo province in South Africa-- a semi-arid region shown to have reduced carbon uptake due to soil moisture anomalies. This negative trend is expected to continue through the 21st century. Credit: Julia K Green/Columbia Engineering

Global carbon emissions reached a record high in 2018, rising by an estimated 3.4 percent in the U.S. alone. This trend is making scientists, government officials, and industry leaders more anxious than ever about the future of our planet. As United Nations Secretary General António Guterres said at the opening of the 24th annual U.N. climate conference on December 3, "We are in deep trouble with climate change."

A Columbia Engineering study, published today in Nature, confirms the urgency to tackle . While it's known that can affect the year-to-year variability in uptake, and some researchers have suggested that there may be longer-term effects, this new study is the first to actually quantify the effects through the 21st century and demonstrates that wetter-than-normal years do not compensate for losses in carbon uptake during dryer-than-normal years, caused by events such as droughts or heatwaves.

Anthropogenic emissions of CO2—emissions caused by human activities—are increasing the concentration of CO2 in the Earth's atmosphere and producing unnatural changes to the planet's climate system. The effects of these emissions on global warming are only being partially abated by the land and ocean. Currently, the ocean and terrestrial biosphere (forests, savannas, etc.) are absorbing about 50% of these releases—explaining the bleaching of coral reefs and acidification of the ocean, as well as the increase of carbon storage in our forests.

"It is unclear, however, whether the land can continue to uptake anthropogenic emissions at the current rates," says Pierre Gentine, associate professor of earth and environmental engineering and affiliated with the Earth Institute, who led the study. "Should the land reach a maximum carbon uptake rate, global warming could accelerate, with important consequences for people and the environment. This means that we all really need to act now to avoid greater consequences of climate change."

Working with his Ph.D. student Julia Green, Gentine wanted to understand how variability in the hydrological cycle (droughts and floods, and long-term drying trends) was affecting the capacity of the continents to trap some of the emissions of CO2. The research is particularly timely as climate scientists have predicted that extreme events will likely increase in frequency and intensity in the future, some of which we are already witnessing today, and that there will also be a change in rainfall patterns that will likely affect the ability of the Earth's vegetation to uptake carbon.

To define the amount of carbon stored in vegetation and soil, Gentine and Green analyzed net biome productivity (NBP), defined by the Intergovernmental Panel on Climate Change as the net gain or loss of carbon from a region, equal to the net ecosystem production minus the carbon lost from disturbance like a forest fire or a forest harvest.

The researchers used data from four Earth System Models from the GLACE-CMIP5 (Global Land Atmosphere Coupling Experiment—Coupled Model Intercomparison Project) experiments, to run a series of experiments to isolate reductions in NBP that are due strictly to changes in soil moisture. They were able to isolate the effects of changes in long-term soil moisture trends (i.e. drying) as well as short-term variability (i.e., the effects of extreme events such as floods and droughts) on the ability of the land to uptake carbon.

"We saw that the value of NBP, in this instance a net gain of carbon on the land surface, would actually be almost twice as high if it weren't for these changes (variability and trend) in soil moisture," says Green, the paper's lead author. "This is a big deal! If soil moisture continues to reduce NBP at the current rate, and the rate of carbon uptake by the land starts to decrease by the middle of this century—as we found in the models—we could potentially see a large increase in the concentration of atmospheric CO2 and a corresponding rise in the effects of global warming and climate change."

Gentine and Green note that soil-moisture variability notably reduces the present land carbon sink, and their results show that both variability and drying trends reduce it in the future. By quantifying the critical importance of soil-water variability for the terrestrial carbon cycle, and the reduction in due to the effects of these changes in soil moisture, the study findings highlight the necessity of implementing improved modeling of vegetation response to water stress and land-atmosphere coupling in Earth system models to constrain the future terrestrial carbon flux and to better predict future climate.

"Essentially, if there were no droughts and heat waves, if there were not going to be any long-term drying over the next century, then the continents would be able to store almost twice as much carbon as they do now," says Gentine. "Because soil moisture plays such a large role in the carbon cycle, in the ability of the land to uptake carbon, it's essential that processes related to its representation in models become a top research priority."

There is still a great deal of uncertainty on how plants respond to water stress, and so Green and Gentine will continue their work on improving representations of vegetation response to soil moisture changes. They are now focusing on the tropics, a region with lots of unknowns, and the largest terrestrial carbon sink, to determine how vegetation activity is being controlled by both changes in soil moisture as well as atmospheric dryness. These findings will provide guidance on improving the representation of plant water stress in the tropics.

"This study is highly valuable as it shines a bright spotlight on just how important water is for the uptake of carbon by the biosphere," says Chris Schwalm, an associate scientist at Woods Hole Research Center and an expert in global environmental change, carbon cycle sensitivity and modeling frameworks who was not involved in the study. "It also exposes underdeveloped aspects of Earth system modeling such as processes related to vegetation water-stress and , which can be targeted during model development for better predictive capacity in the context of global environmental change."


Explore further

New study shows vegetation controls the future of the water cycle

More information: Large influence of soil moisture on long-term terrestrial carbon uptake, Nature (2019). DOI: 10.1038/s41586-018-0848-x , https://www.nature.com/articles/s41586-018-0848-x
Journal information: Nature

Citation: Climate change tipping point could be coming sooner than we think: study (2019, January 23) retrieved 16 June 2019 from https://phys.org/news/2019-01-climate-sooner.html
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Jan 23, 2019
There will be a day when the people who argued against preventing climate change will be treated the way nazi apologists are today.

Jan 23, 2019
Celebrated as heroes by an underground cabal for decades, until they use manufactured religious and race and economic divisions to "normalize" their speech and rise again through puppet leaders?

Jan 23, 2019
when so many billionaires have flown their private jets to Davos to decide how to fix global warming we get propaganda about how bad it really is!
until they tell us how our higher taxes can make the sun do things differently I say its just another scam (the sun controls our weather, right?).

Jan 23, 2019
Wasn't dixon an englishman?

So, I just got to ask...
What do you think is controlling the weather when the Sun ain't shining?

The Moon?
Or have you been gargling with Moonshine?

Boy, you need to cut back on that revenuer piss. It is fiercely bad for your cranial functions!

Jan 23, 2019
There will be a day when the people who argued against preventing climate change will be treated the way nazi apologists are today.


I am in favor of criminal charges and public execution upon conviction.

Jan 23, 2019
they tell us how our higher taxes can make the sun do things differently I say its just another scam (the sun controls our weather, right?).


You can either start to act rationally or be compelled to do so through increased taxation and the gallows.

The choice is yours.


Jan 23, 2019
the 'nazis ' might shoot back

Jan 23, 2019
"... the 'nazis ' might shoot back..." yeah snooze cause that has worked so well for them in the past. The altright fairytails will never be accused of being creative or inventive,

Making the same errors, over & over again? Never learning from their mistakes? Are the very definition of the reactionary. History books are boring, so they burn them.

Don't worry snooze, you should be safe from those quislings if you avoid
educational facilities,
houses of worship,
public Health clinics
libraries
museums
entertainment venues

the amerikkkan taliban can be counted on to shoot the undefended. The predator's instinct is to go after the young, the disabled & the elderly.

"It's Nature!" russian proverb
How appropriate fpr our time...

Jan 23, 2019
There will be global warming and this is a good thing. The earth was turning into an ice-ball as evidence by the many severe ice ages the last million years. Just check out wikipedia. https://en.wikipe...e_record

Jan 23, 2019
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Jan 23, 2019
call me when the danes have been growing cattle wheat and barley on Greenland (they did once 1000 years ago, since then it's been too cold)..

you can also call me when growing grapes to ferment into wine becomes a thing again in northern Europe (they once did, but it's been too cold since about 1300 CE and still is too cold).

Jan 23, 2019
@shootist One guy finds a handfull of grain at the bottom of a trash heap, and to you that means that they had large-scale farms all over the island. I suppose you believe that the human remains on the island prove that humans evolved on Greenland too?

Jan 23, 2019
Wait until the ocean is done sucking up half the energy, the air will be as warm as you skeptics seem to expect it to be soon enough.
But, no matter. We've already effed up the ecology of the entire planet, insects are DYING for effs sake, no need to argue about the climate.
Enjoy yourselves, nothing humans do is sustainable, and, the Biosphere will be done with us soon, even if we killed all the cattle and ate nothing but zucchinis. Just don't have kids.

Jan 23, 2019
call me when the danes have been growing cattle wheat and barley on Greenland (they did once 1000 years ago, since then it's been too cold)..

you can also call me when growing grapes to ferment into wine becomes a thing again in northern Europe (they once did, but it's been too cold since about 1300 CE and still is too cold).

Calling shootist, calling shootist...
In 2006 there were over 450 vineyards in England producing wine, plus 20 in Wales. Try googling "wine production in England".

Jan 23, 2019
Understandable that people committed to believe the science on climate is wrong get upset about ongoing climate science that shows the problem is real and serious. It is quite right of Phys.org to have articles that present that science seriously.

Trawling through IPCC and other reports looking for the rare sentences and phrases that can be made to look like they contradict the main body and conclusions when taken out of context must get tedious, but I suppose someone has to stand up and look like biased and gullible to make the scientists look more credible.

The real world evidence of warming has already made continuing denial of climate science's validity by people in positions of trust and responsibility less tenable. The rapid cost declines of renewable energy are making the alarmist economic fears of doing without fossil fuels are making obstruction of clean energy less tenable. Environmentalist getting the climate issue right is making hippie blaming less tenable.

Jan 23, 2019
From the article we have this; "Climate change tipping point could be coming sooner than we think: study". It sounds pretty scary, doesn't it? That's exactly what we've done. We're over the top man. The climate system is toast. Mankind has done a number on everything and while we can live out our days, it's not going to be fun for anyone. FU deniers, devil worshippers, and rightwing freaks, you got what you wanted, deal with it.


Jan 23, 2019
"This study is highly valuable as it shines a bright spotlight on just how important water is for the uptake of carbon by the biosphere,"


Water is 90% of the greenhouse gas's effect. CO2 5% maximum. Complete alarmist BS from media anymore. No wonder 37% think climate change is a hoax, hell, 41% believe in the devil, so 37% is kind of meaningless.

Jan 23, 2019
There will be a day when the people who argued against preventing climate change will be treated the way nazi apologists are today.


Spoken like a disciple of Stalin. Re-education camps, gulags?

Jan 23, 2019
There will be a day when the people who argued against preventing climate change will be treated the way nazi apologists are today.


I am in favor of criminal charges and public execution upon conviction.

Might as well drag them through the streets, gut them and then nail them to a cross while you are at it. Imagine, questioning the almighty and thinking they could get away with it! Blasphemy!

Jan 23, 2019
hippie blaming
Actual hippies were concerned about dirty air and burning rivers, but coming up with the idea of a whole planet warming was way outside their capacity. In reality, they thought the world was about to plunge into an Aquarius Age. Hippie blaming is a good term for the deception that this concept was thought up by interested non scientific types whether tree huggers, media or politicians.

Jan 23, 2019
I am by no means an expert. So don't pretend to be, but assuming another article I read on phys.org is true, that there is little mixing between the ocean at the lower third depth of all the oceans. And secondly that they are still cooling, then I wonder if the following might be a good way of dealing with it.

Currently, there is a company that generates electricity off of the temperature difference from the ocean at 2000 feet and the surface temperature.

Instead of just using it to generate electricity, what if we took just a portion of this energy to run pumps from the bottom of the ocean to the surface where ocean currents are fastest and pump trillions of gallons from the bottom to the surface. Thereby accelerating the mixing and reducing the climate's temperature in a very controlled way.

Jan 23, 2019
The total sum we are pumping wouldn't change so the short term effect would act as an emergency cooling and the long term effect wouldn't change the total CO2 being pumped into the oceans any (assuming that we stick with a climate agreement). It might save the fish and the coral reefs and buy us time!

Jan 24, 2019
Luke 21:25-26
25 There will be signs in the sun and moon and stars, and on the earth dismay among the nations, bewildered by the roaring of the sea and the surging of the waves.
26 Men will faint from fear and anxiety over what is coming upon the earth, for the powers of the heavens will be shaken.

Jan 24, 2019
Most "global warming" deniers are very likely suspicious of those climate change aficionados who fly their private airplanes to Davos (or wherever) to attend "climate change" meetings, and then fly again to return home or wherever it is they're flying to next - all the while clucking their tongues as to how the rest of the western world have the nerve to drive petrol-driven vehicles, heat their homes and cook their food with fossil fueled energy, AND fly in fossil-fueled airliners just like they do. There is a bit of a discrepancy in the mindsets of the rich "global warming" merchants of doom, when what THEY are doing and saying amounts to, "Do as I say, not as I do".
IOW, deniers are saying to these rich and influential AGW people - "Put your money where your mouth is" and stop pretending that you care about stopping AGW when YOU are doing what you don't want US to do.
Until the rich and powerful are behaving right - don't tell us what to do what YOU won't do also.

Jan 24, 2019
Of course none of their conclusions have been validated with actual, you know, measurements, which is what scientists do to test their theories. It's so much more convenient to the alarmist narrative to skip over that part and just publish the computer model results.

Climate change tipping point could be coming sooner than we think

No. There is no scientifically recognized "climate change tipping point". The only one we know of is the one that flips back and forth between cold glacial periods and warm interglacial periods and no one knows what drives it, though the Milankovitch Cycle is the main suspect. And we certainly have no idea how to predict it. So "climate change tipping point": no. Just no. It's a BS phrase that has only one purpose: to scare the scientifically illiterate.

Jan 24, 2019
The Earth is in the process of a slow "flip-flop" that may or may not fully happen in our lifetimes. Due to the surface of the Earth floating on a world-wide sea of magma far underground, the poles are steadily shifting where "True North" is no longer at the North Pole. It has already shifted to, I believe, Siberia. This shifting of the continents is most likely causing the changes in temperatures in places like Australia where it has been extremely hot.
And why is it that car and truck manufacturers are dragging their feet in the making of vehicles that are not only battery operated with solar roof panels that have to be energized from the grid at night (mostly using fossil fuels) but also can run longer distances before needing recharging? Is there wind power available to recharge a car's battery while driving at night?

Jan 24, 2019
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Jan 24, 2019
I'm going to buy a yellow vest.

Jan 24, 2019
Woolly Mammoths still frozen in Siberia.
Proving it was way hotter in the past with lower CO2.

Jan 24, 2019
rrwills - "So, I just got to ask...
What do you think is controlling the weather when the Sun ain't shining?"

When, exactly, is the sun not shining?

What is it then, if not the sun, that adds one iota of kinetic energy to our atmosphere if not the sun? Is it.. cow farts, swamps, dreaded "fossil fuels"?

This global warming religion can't be taken seriously because it does not take science itself seriously. The sun creates and fully controls our weather. You've been taken advantage of but we all have at some point, it's what you do next that matters. Wake up!

Jan 24, 2019
the 'nazis ' might shoot back


That would make them terrorists and worthy of more imprisonment and execution.


Jan 24, 2019
Liar... Liar... Pants on fire...

Woolly Mammoths still frozen in Siberia.
Proving it was way hotter in the past with lower CO2.


The last of the woolly mammoths died out 5,000 to 6,000 years ago, well into the current inter-glacial.

So why did you feel a need to lie about it?

Jan 24, 2019
[qWhat is it then, if not the sun, that adds one iota of kinetic energy to our atmosphere if not the sun? Is it.. cow farts, swamps, dreaded "fossil fuels"?

Increasing CO2 increases the insulating capability of the atmosphere, reducing the rate at which heat escapes into space, thus resulting in higher surface temperatures.

How is it that you can't manage to understand this when 10 year old children in Grade 5 can?

There is only one answer. You are willfully ignorant.


Jan 24, 2019
[q This shifting of the continents is most likely causing the changes in temperatures

LOL - Hay Moron. The magnetic polls aren't shifting because the continents are moving. It is shifting because electrical currents that make up the Earth's magnetic dynamo are shifting direction.

If the continents were moving enough to put what was once Siberia to where Northern Canada was 50 years ago, Florida would be on the equator.

How can you manage to survive being so stupid?


Jan 24, 2019
"So "climate change tipping point": no. Just no. It's a BS "

What is being referred to a "climate change tipping point", is a rapid change in a chaotic system from one set of state attractors to another set with dramatically different properties.

This kind of change is seen in all chaotic system, and the climate system is known to be chaotic.

Once a system has changed to another set of attractors, it is generally stable there, with the state orbiting that set until conditions produce another dramatic change.

If you like eating you should strive to avoid such a change in the climate system.

Jan 24, 2019
"In reality, they thought the world was about to plunge into an Aquarius Age."

You are living in the age of Aquarius - the water carrier- you silly boy. The sun entered that constellation - house -, leaving Pisces the fish, more than a century ago.

The biblical Christ orders his followers to abandon him, and follow the water carrier into the new house.

Haven't you read your bible?


Jan 24, 2019
"Might as well drag them through the streets, gut them and then nail them to a cross while you are at it"

I intend to do just that. Tic.. Toc... Tic.. Toc... Their time is running out.


Jan 24, 2019
There will be a day when the people who argued against preventing climate change will be treated the way nazi apologists are today.

Spoken like a disciple of Stalin. Re-education camps, gulags?


Yup, Stalin against the NAZI's.

Stalin won the war against the Nazi's. Your side lost.

Jan 24, 2019
dixie, thanks for commenting on my interpretation of your own comment.

Yes, it amuses me to confirm my opinion that you are barely literate & probably innumerate.

Now, if you were the victim of a natural event, such as being buried by an avalanche?

As I plowed up to your presumed position. Digging you out of the drifts?
Then reversed the snowplow to blast you into a ravine & piled on a ton or two of snow, ice & rock?

Would not this additional, man-made event, be the very definition of Anthropocentric influenced Climate Change?

Cause I'll bet that your heirs, while wiping away their crocodile tears? Will insist that I, the Human, me. Not the originating blizzard. Be held accountable for your mortal injuries!

& here, out of the kindest of motives, I'm sure. You are providing me with a defense against their suit.
That Nature is always at fault
& Human activities are always blameless.

Thanks buddy! Retelling this story will get me a lot of free beers.

Jan 24, 2019
We are in trouble folks. The world is undergoing very serious climate change but political corruption and propaganda prevent those without the requisite intelligence from understanding what is happening. Half the Great Barrier Reef is dead and so are a billion trees in the American West, but a large fraction of folks still don't get it.

https://www.natio...-change/

https://phys.org/...ift.html

Jan 24, 2019
When, exactly, is the sun not shining?

At night. Interestingly enough, climate change is causing nights to warm faster than days. This is something that could not happen if the sun was the cause of the warming. There are other examples of how the warming that is occurring cannot be caused by the sun (eg, stratospheric cooling). So much so that even if we weren't measuring the energy from the sun (which we are so we know that there's been less energy from the sun since the '60s), we could still say conclusively that the sun was not causing the current warming. Of course, all the data matches what happens when CO2 causes warming.

What is it then, if not the sun, that adds one iota of kinetic energy to our atmosphere if not the sun

Increased levels of CO2 result in less energy being radiated by the earth into space. If the earth radiates less energy, but still gets about the same amount coming in, the earth must, by definition heat up.

Jan 24, 2019
I'll just add that the basic science really isn't that difficult, so you should be able to understand it if you want.

Jan 24, 2019
For those who gave never spent some time in a desert?

Fiery hot days...
Freezing cold nights...

During the day, with the Sun blazing down & you were paying attention to the environment?

You would notice that the sand & rocks & yourself & everything else exposed to the Sun? Are getting hotter...

Collecting energy from the Sun. Even on cloudy days.
Not only sunlight is collected.

Flipping the Sun''s off-switch? You can feel the collected heat / energy radiating into the sky.
From everything around you.

The looming problem is that once our atmosphere & oceans are saturated with excess natural heat & excessive man made heat?

The Global Climate will get pretty damn ugly for everybody.

We got no where to go.
& no way ti get anywhere possibly habitable.

Even the denierrats ain't escaping off this sinking ship!

Jan 25, 2019
150 million estimated Woolly Mammoths are still frozen "only" in Siberia.

Why was it so hot in Siberia 39,000 years ago in "Siberia" if the CO2 "Driver" of climate was so much lower than today?

Proving the world was hotter than today with lower CO2.

Jan 25, 2019
unreal troll, all your lies will not change the fact that we are now in serious trouble.

Woolly Mammoths preferred a colder climate and as the ice age ended it invited different plant species and warmer weather creatures, like humans, that the Woolly Mammoths were not adapted too.

How much to do you get paid to post lies in the hopes of causing confusion? We need laws against professional liars like you so you can be prosecuted.

Jan 25, 2019
I don't know Mark. As satisfying as it is to think of Karmic Justice running over the denierbots, wooloons & godfreaks?

Heep in mind, they are masochist submissives. Dreaming of a painful martyrdom.

What kind of punishment for their treasonous activities is giving them the punishment they so deeply crave?

Jan 25, 2019
rrwillsj, once people start dying in large enough numbers, we may come to view this evil denier propaganda as some kind of crime against humanity.

Jan 25, 2019
True global warming
SEU> The Earth is in the process of a slow "flip-flop" that may or may not fully happen in our lifetimes. Due to the surface of the Earth floating on a world-wide sea of magma far underground, the poles are steadily shifting where "True North" is no longer at the North Pole. It has already shifted to, I believe, Siberia. This shifting of the continents is most likely causing the changes in temperatures in places like Australia where it has been extremely hot.

When all electricity is generated at home, the realisation will dawn
it is the Earth and the Sun that is the cause of global warming
These periods of deserts, glaciations, droughts, floods, volcanos, Continental shift
are still occurring despite how we produce electricity
there is saying of electric power
there are lots and none
we have chosen none

As in these shires, this 2019 summer is going to hot

Jan 25, 2019
gosh granny, I was attempting to think of a way for you to positively prove that Anthropophagus Assisted Climate Change IS NOT occurring in addition to all the natural climate phenomena.

Well that turned out to be a fail.

So instead here's a new joke.

How does a denier prove he believes his bunkum?
He jumps from a high-altitude. Without a parachute.
To prove that a positive, carbon-affirmative, pro-nuke, greed & waste of resources proper attitude will be more than sufficient ti prevent a harsh landing.

Jan 25, 2019
Climate change tipping point could be coming sooner than we think: study

And the real zinger will be that the climate will be tipping into another cold spell such as that which corresponded with the Maunder Minimum. The Sun is heading toward an extreme sunspot minimum and lower solar total energy outpu which results in a weaker Earth magnetic field. The obvious result of lower solar energy? Lower temps. There will be more cosmic rays entering Earth's atmosphere, resulting in more cloud cover which will induce further cooling.

The AGWites will be hoping for a return of "global warming" before too long.

Jan 25, 2019
And "Continental Shift" is also happening - at times very slowly - and at times very fast, as in why an animal fossil was found under the Antarctic ice with an undigested meal of buttercups in its stomach. Flash frozen, it was.

http://www.arctic...pole.htm

Jan 26, 2019
cant & seu. Let me guess, somebody else is paying the electric bill for your A/C?

Must be nice to get subsidized off the Public dole...

Jan 26, 2019
rrwillsj, what cant & seu are doing is either immoral or moronic. Intentionally or recklessly publishing falsehoods in expectation of personal financial gain that hurts others sounds like a despicable and fraudulent way to earn a living. Now as you pointed out, they may merely be masochistic morons who couldn't think their way out of a paper bag if their lives depended on it, in which case institutionalization may be more appropriate than incarceration.

Jan 26, 2019
rrwillsj, once people start dying in large enough numbers, we may come to view this evil denier propaganda as some kind of crime against humanity.

The Mark ThomASS jackass brays again.
This is the jackass who keeps crying that big oil does not want him to stop burning fossil fuels and so he continues, despite believing that it is destroying the world.
Keep braying at the heretics, you jackass.

Jan 26, 2019
antigoracle, are you the paid liar or masochistic moron type of denier troll? My guess is moron, but you may actually be both.

Jan 26, 2019
cant & seu. Let me guess, somebody else is paying the electric bill for your A/C?

Must be nice to get subsidized off the Public dole...
says rrwilliejoe

Making false assumptions again, are you?

I/we pay our own bills as we are successfully self-employed - if you must know.

But I was under the impression that you are an unapologetic and unremorseful Socialist/Marxist and that you are anxious to allow all of those illegal immigrants from South of the US border to cross into the US so that they can take advantage of the kindness and concern for the poor and endangered Hispanics that the Democrat Party wonks wish to help by the use of other people's money. The more illegal immigrants are allowed to cross into the US, the more fossil fuels will be needed to fill their trucks and cars - on the dole, of course. Unless they have managed to take jobs away from American citizens.
And the uninformed Mark Thomas actually believes your lies. Tch Tch

Jan 27, 2019
And the uninformed Mark Thomas actually believes your lies.


This shifting of the continents is most likely causing the changes in temperatures in places like Australia where it has been extremely hot.


Says the clueless wonder who couldn't pass a middle school science class. So your explanation for the dramatic heat waves in Australia is continental drift?!? Exactly how far and in what direction do you think Australia has moved in the last century? I keep thinking you are a paid troll, but it appears you have no idea how to think through problems.

Jan 27, 2019
There will be a day when the people who argued against preventing climate change will be treated the way nazi apologists are today.


I am in favor of criminal charges and public execution upon conviction.
I favor hanging them by the ankles over rising raw sewage.

Jan 27, 2019
So from what has been put on display by the AGWites, the expectation is as follows;

AGWites can and should be as wasteful as possible in their mission to evangelize their beliefs. Only those who are not fully indoctrinated in their beliefs are required to suffer the lower standards of living they claim are necessary to save us from ourselves. In other words, do as they say, not as they do.

Jan 27, 2019
And a couple more items, according to the AGWites, all "denialists" should be held totally responsible for the entirety of the problem. In addition, we denialists should be indicted in a kangaroo court similar to that which was held for the Nazi's.

Jan 27, 2019
are required to suffer the lower standards of living


Denier, driving an electric vehicle is not suffering. I own a Tesla Model 3 (Dual Motor AWD) so I know what I am talking about. Next, I would like for myself AND everyone in general to be able to drive around and enjoy wonderful places like New Orleans and Miami that may not exist if Deniers have their way. This is actually suffering far, far less and that is the whole point, i.e., to minimize long-term suffering by humanity and the environment.

BTW, every time I push down on my Tesla's accelerator I promise that I am doing the exact opposite of suffering. :-)

Jan 27, 2019
The morons believe that the manufacture and use of electric cars results in zero carbon emissions.


Jan 27, 2019
Hopefully for yourself, you were able to purchase your Tesla before the Osama tax deduction expired. But I am sure you didn't apply for the tax deduction anyhoo due to the obvious conflict of interest present.

Jan 27, 2019
The size of the greenhouse effect is often estimated as being the difference between the actual global surface temperature and the temperature the planet would be without any atmospheric absorption, but with exactly the same planetary albedo, around 33°C. This is more of a "thought experiment" than an observable state, but it is a useful baseline."

Dr Gavin Schmidt , Nasa

Jan 27, 2019
Mark Thomas wrote:
We are in trouble folks. The world is undergoing very serious climate change but political corruption and propaganda prevent those without the requisite intelligence from understanding what is happening. Half the Great Barrier Reef is dead and so are a billion trees in the American West, but a large fraction of folks still don't get it.

Thanks for the link to the "Beetles killing Billions of Trees" report. I mourn the Ash trees (different beetle, I presume).
A couple of quotes from the article for context:
"Since 2000, two dozen species of beetles have killed trees on nearly 85,000 square miles (220,000 square kilometers) in the Western U.S. That's an area about the size of Utah. Beetles have killed nearly 80,000 square miles (206,000 square kilometers) of forest in Western Canada. The outbreak stems from a combination of factors, including crowded, aging forests, drought-stressed trees and warmer temperatures that allow the pests to survive the winters..."

Jan 27, 2019
(cont) and:
Other researchers say it makes little or no difference whether fires are burning in a forest full of beetle-killed or a forest with more healthy, living trees.

Fires move quickly and burn only the outer layers of trees, pine needles and small twigs, said Chad Hanson, a research ecologist and principal scientist for environmental group the John Muir Project.

"On the surface, it makes so much sense to believe that dead trees would burn more easily," he said. "The problem is, it's not true. It's been tested over and over again in real fires, and it's not happening."

Jan 27, 2019
are required to suffer the lower standards of living


Denier, driving an electric vehicle is not suffering. I own a Tesla Model 3 (Dual Motor AWD) so I know what I am talking about. Next, I would like for myself AND everyone in general to be able to drive around and enjoy wonderful places like New Orleans and Miami that may not exist if Deniers have their way. This is actually suffering far, far less and that is the whole point, i.e., to minimize long-term suffering by humanity and the environment.

BTW, every time I push down on my Tesla's accelerator I promise that I am doing the exact opposite of suffering. :-)

And so, the Mark ThomASS jackass brays. Of course the jackass is not suffering, when it goes joyriding in its Tesla, oblivious of the fact that most of the electricity that went into that Tesla came from fossil fuels.
Keep braying at the heretics, you jackass. That's how you'll save the world.

Jan 27, 2019
While everyone is worrying so

Have you noticed the lack of propulsion articles on phys.org
have you noticed the lack of energy production articles on phys.org
producing energy is more than turning magnets in an electrical coil
as propulsion is more than expelling propellant out of nozzles
what is of concern, is what turns the magnets in the coils to produce the electricity to turn the magnetised coils that turns wheels
because rockets do not require wheels, as they are using inertial propulsion as in Newton's third
every one is taking their eye of the ball worrying about what does not concern us
its like trying to stop the tide coming in
worry over energy production and manmade climate change will disappear
energy is free
energy is plentiful
energy is all around us
day and night
Energy
there is lots and none
We have chosen none, now we are being asked to accept less, even as this fusion reactor in this sky burns eternal

Jan 28, 2019
Antigoracle, the puss infected scab oozes once again. Antigoracle is so incredibly stupid he can't imagine anything but a complete solution to the problems he has created jumping out whole to save him. Antigoracle, the puss infected scab who has spent years trying to mislead people now demands every partial solution to global warming must be perfect. What the (blank) have you ever done to mitigate the problem? The answer is nothing! Directly or indirectly you only seek to make it worse. You are a pathological liar and a hypocrite.

Jan 28, 2019
Antigoracle, HAWW..HAWW...HEE...HAWW...HAWW..HEEEE What the (blank) have you ever done to mitigate the problem? The answer is nothing! Directly or indirectly you only seek to make it worse. You are a pathological liar and a hypocrite.

And so, the Mark ThomASS brays again.
The jackass so cares, about GloBull warming, that it boasts about joyriding in its Tesla, and choose to remain ignorant of the fact that almost all the electricity that goes into his joyriding comes from fossil fuels.
https://en.wikipe...ates.svg
Keep braying at the heretics, you jackass. That's how you'll save the world.

Jan 28, 2019
Antiporacle, the puss infected scab oozes once again. Your entire existence is dedicated to making the problem of Global Warming even worse. You have done absolutely nothing to help and instead attack the positive efforts of others at every turn with lies and obfuscation. How do you live with yourself knowing that you are the lowest puss infected scab on the body of humanity? Do you fear karma catching up with you some day? Perhaps it would be fitting if your cells turned cancerous and consumed you as you turned traitorous against humanity.

Jan 28, 2019
Noted that the conversation has been diverted from the tipping points.

Jan 28, 2019
Antiporacle, HAWW..HAWWW...HEE..HEE..HAWWWWW.. traitorous against humanity.

Mark ThomASS, does what it does best.

https://en.wikipe...ates.svg

Jan 28, 2019
Speaking of asses, seems like @tehalgoracle is braying like usual.

https://en.wikipe...oduction

Teh stoopit, it burnz.

Jan 28, 2019
Antiporacle, the puss-infected scab oozes once again.

US Energy Information Administration: Renewables To Be Fastest Growing Source Of Electricity Generation In Coming Years


https://cleantech...g-years/

Every year my Tesla will run on electricity that is more and more carbon free. Looks to me like your filthy coal and dirty oil are on their way out, and none too soon. You also failed to acknowledge that large power plants are usually more efficient that the small internal combustion engines that ICE cars use. I plan to install a massive solar roof from Tesla when the timing is right for me. My plan is to use zero fossil fuels, with no suffering what-so-ever, thereby strengthening the muscle of humanity. Your plan is to keep being an oozing, puss-infected scab on the body of humanity.

Jan 28, 2019
And the uninformed Mark Thomas actually believes your lies.


This shifting of the continents is most likely causing the changes in temperatures in places like Australia where it has been extremely hot.


Says the clueless wonder who couldn't pass a middle school science class. So your explanation for the dramatic heat waves in Australia is continental drift?!? Exactly how far and in what direction do you think Australia has moved in the last century? I keep thinking you are a paid troll, but it appears you have no idea how to think through prob
says MarkThomas

Try explaining to those in the midwest and northeastern States in the USA who are now being warned to not stay outdoors too long because of the danger of frostbite (frozen flesh, FYI).
It just happens to be summertime in Australia, as well as volcanos in the region which may or may not be active deep underground.
Since you don't believe in continental shift, what happened to Pangaea?

Jan 28, 2019
-contd-
Australia is quite close to the "Ring of Fire" - just a bit South of the region, I believe. But since ALL continents float on magma deep underground - it is that magma that causes continents to break apart - most often very slowly - but at times it could happen quite suddenly and you will never know when, except for earthquake and tsunami warnings. Magma deep underground also produces heat that rises to the surface that could also contribute to heat rising to the surface and into the atmosphere. Sunshine in Sydney, Australia as well as in New York City and London, UK (in the summertime) is bound to heat the air, sidewalks, structures, etc. That is weather and weather is changeable in all 4 seasons.

Jan 28, 2019
SEU, your Republican-style of deceptive arguing won't work with me. Mislabeling, half truths, over-generalizing, strawmen, errors in logic, outright lies . . . we had seen all this from you and your ilk before.

So exactly what is your motivation for posting here? Are you making money or just willfully ignorant of how science works?

Jan 28, 2019
-contc-
I heard on the radio that the temperature in the Bahamas now is about 60 degrees F, so that the people who live there are considering it too cold, wrapping themselves in warm winter coats and being likened to Eskimos. When one of the natives in Bahamas was asked what he thought of Global Warming, he said "We don't buy it".

For those who don't know:

Bahamas | bəˈhäməz |
a country in the northwestern West Indies, an archipelago off the southeastern coast of Florida; population 388,000 (estimated 2015); capital, Nassau; languages, English (official), Creole.


Jan 28, 2019
SEU, your Republican-style of deceptive arguing won't work with me. Mislabeling, half truths, over-generalizing, strawmen, errors in logic, outright lies . . . we had seen all this from you and your ilk before.

So exactly what is your motivation for posting here? Are you making money or just willfully ignorant of how science works?
says MT

My politics has nothing to do with the fact that there is freezing temperatures in the USA right now. Warnings that it is too cold to remain outdoors and that frostbite may occur without protective cover tells me that weather is happening. It is wintertime in New York, the midwestern and northeastern states, which only means that SEASONAL CHANGES IN CLIMATES IS HAPPENING ALL AROUND THE WORLD - according to in which hemisphere one lives.
YOU should be much more concerned about all of the PLASTICS that are being found in the bodies of fish and other sea life forms - and ultimately in humans and animals. Tiny particles of plastics

Jan 28, 2019
Psychotic @SEU thinks aliens are Republicans.

Jan 28, 2019
the fact that there is freezing temperatures in the USA right now


SEU, so you concluded that because it is cold right now in the U.S. that global warming is over?

SEU, why are you bothering to post this stuff? I don't think the Koch Bros. or the Russians would pay for such stupid comments. Is it that inferiority complex of yours acting up again? Maybe you are trying to feel better by posting your hopelessly flawed ideas about climate change on a science website? I hate to break it to you, but do you have any idea how you appear to those of us that actually understand what is going on?

BTW, I do not mean an advanced degree level of understanding because a high school level of understanding should suffice.

Jan 30, 2019
Well, we could all go back to horse and buggy days, and whale oil lamps. But then we'd have to contend with horse farts.

Jan 30, 2019
Or move forward to electric cars and renewable energy.

You got something against that?

Jan 31, 2019
the fact that there is freezing temperatures in the USA right now


SEU, so you concluded that because it is cold right now in the U.S. that global warming is over?

SEU, why are you bothering to post this stuff? I don't think the Koch Bros. or the Russians would pay for such stupid comments. Is it that inferiority complex of yours acting up again? Maybe you are trying to feel better by posting your hopelessly flawed ideas about climate change on a science website? I hate to break it to you, but do you have any idea how you appear to those of us that actually understand what is going on?

BTW, I do not mean an advanced degree level of understanding because a high school level of understanding should suffice.
says MT

Did I say that GW is over? Show me where I said that.
I said, "Warnings that it is too cold to remain outdoors and that frostbite may occur without protective cover tells me that weather is happening. It is wintertime in New York...."

Jan 31, 2019
@Mark Tomas
MT, why are you bothering to post your imitation of Da Schiebo's and other Global Warming Doom & Gloom Sayer's poofy comments like all humans are going to be dead by 2030 - as Alexandra Ocasio-Cortez is fond of predicting. What "inferiority complex" are you talking about? It must be your own inferiority complex or Da Schiebo's aka Da Pussyman's that are brought into the physorg phorums at least almost every day. Are you that lonely for like-minded company, MT?
If I saw that it is 80 degrees F. in New York in the middle of January, that's when I would worry.
But as it is now - it is normal weather/climate.
So what's your beef, MT? Are you now the local Roman Emperor looking to crucify someone? Perhaps Da Pussyman can tell you where to find his jebus and the both of you can go flog this jebus person all you want.
hahahahahahahahahahhaaahaaaaa

Feb 01, 2019
This shifting of the continents is most likely causing the changes in temperatures in places like Australia where it has been extremely hot.


SEU, stop pretending you understand anything at all about Global Warming and educate yourself on the subject.

Start here: https://en.wikipe..._warming

If I saw that it is 80 degrees F. in New York in the middle of January, that's when I would worry.


That is about 40 degrees F warmer than normal, so would you worry if parts of the arctic were more than 40 degrees F warmer than normal?

https://www.theat.../554303/

BTW, if I was the "local Roman Emperor," those who maliciously and persistently work to deceive others about global warming, like you and your ilk, would have to answer for your behavior.

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