Once upon a time, scientists did a study that “suggests” something, because this isn’t science, unless it’s social science or political science
Parts of tropical rainforests could get too hot for photosynthesis, study suggests
Some leaves in tropical forests from South America to South East Asia are getting so hot they may no longer be able to photosynthesize, with big potential consequences for the world’s forests, according to a new study.
Leaves’ ability to photosynthesize – the process by which they make energy from carbon dioxide, sunlight and water – begins to fail when their temperature reaches around 46.7 degrees Celsius (116 Fahrenheit).
While this may seem high, leaves can get much hotter than the air temperature, according to the report published Wednesday in Nature by a group of scientists from countries including the US, Australia and Brazil.
The scientists used temperature data beamed down from thermal satellite sensors on the International Space Station, 400 kilometers (nearly 250 miles) above the Earth. They combined this with on-the-ground observations from leaf-warming experiments, in which scientists climbed into the canopy to painstakingly add sensors to leaves.
Rather than looking at average temperatures, the scientists were looking at extremes, said Christopher Doughty, associate professor in ecoinformatics at Northern Arizona University and a report author. They found that average forest canopy temperatures peaked at 34 degrees Celsius (93 Fahrenheit) but some exceeded 40 degrees Celsius (104 Fahrenheit).
Currently, 0.01% of leaves are passing the critical temperature threshold beyond which their ability to photosynthesize breaks down, the report found, potentially killing the leaf and the tree.
How did these trees deal with previous Holocene warm periods, many of which were warmer? Of course, the study suggests it is going to get even more doomy, so, ignore the .01%
Tropical forests can withstand around 4 degrees Celsius (7.2 Fahrenheit) of additional global warming before they reach a tipping point in terms of their ability to photosynthesize, according to the report.
GTF out of here. It’s just 1.5F since 1850. The Earth will flip into a cool period well before this 7.2F happens. But, no one is going to fund the “scientists” unless they’re fearmongering.
Read the article in Nature, not the media condensation, or worse, Teach’s misinterpretations.
It’s hardly surprising that living tissues, in this case, leaves, function best within an optimum temperature range. Without outside protections, human tissues don’t function well at temperatures too high or too low. The scientists recognized the low probability of leaf temperatures shutting down photosynthesis.
Mr Teach: The Earth will flip into a cool period well before this 7.2F happens.
A scientist might phrase it, “History suggests that the Earth may flip into a glacial period well before this 7.2F happens.”
translation: give us your money and way of life and we will prevent this from happening.
Volcanoes must be banned because they dump more temperature-raising greenhouse gasses during an eruption than all of humanity for “X” period of time, as well as high-altitude particulates for the big ones that decrease the solar radiation and cool the planet.
I guess big volcanoes, preferably super-volcanoes, would be allowed in this trans-friendly world due to the possibility of both global warming and cooling from the same event.
Commenter: Volcanoes must be banned because they dump more temperature-raising greenhouse gasses during an eruption than all of humanity for “X” period of time
While greenhouse gases are emitted by volcanoes, they do NOT dump more than all humanity over “X” period of time. Not even close.
K. Not even three seconds worth, since you’re all into semantics?
https://fortune.com/2023/07/27/why-extreme-heat-not-just-climate-change-el-nino-volcano/
https://www.carbonbrief.org/tonga-volcano-eruption-raises-imminent-risk-of-temporary-1-5c-breach/#:~:text=Meanwhile%2C%20it%20expelled%20a%20total,16%2C%202022%20in%20Earth%20Orbit.
That has been pointed out to Rimjob before but he just ignores it.
Don’t bother using common sense and evidence with chubby because he’s smarter than anyone here.
Just ask him.
Bwaha! Lolgf
Dick McFluffin strikes again.
Not smarter, just not as gullible as youse guys.
BoyPussy is such a fluffing whore. LOL.
He is incapable of making an argument, but fluffs strangers that do (regardless of how misleading the argument is).
Your mommy must be so proud of her boy.
Was that your point, that 3 seconds worth of a volcanic eruption emits more CO2 than 3 seconds of all human activities for the same 3 seconds? Do you even have a point?
The tonga eruption was an undersea volcano that added significant amounts of water vapor that caused short term warming.
Brilliant analysis, Rimjob.
Clear and concise without any valid citations.
There were two citations provided for you that shows your “claims”, like you, are full of shit.
Guess they were all gullible too.
MN,
You will find that all knowledge has been changed to accept the fact that man is the only entity that produces carbon. This despite the fact that studies clearly show periods of high carbon before man started using fossil fuels. In the liberal world only man is responsible for elevated carbon and that only destruction of western civilization will change the environment back to the period of Camelot. Bubbles of CO2 have been so massive as to wipe out whole villages, sink ships and many other instances of carbon production by earth. Volcanos produce massive amounts of carbon, but man is the only problem.
Of course the climate is changing as it has done forever. In a few years we will go into a cool period of 10 years. Nothing postulated by the liberals is worth consideration.
Humans are not, and were not the only cause of atmospheric CO2. There is a complex carbon cycle with both short and long term components. You can look it up. For the past million years atmospheric CO2 has ranged between 180 ppm to 300 ppm. Today it stands at 420 ppm, the highest level in human existence. The source of the increase is not volcanic degassing but rather our burning of fossil fuels. So what, you ask? It is causing the Earth to warm.
Didn’t address you Jeff. Your comment is not necessary to the discussion as there is little meaning.
Yep.
So you deny that the Hunga Tonga–Hunga Ha’apai volcano added a temporary bolus of water vapor to the stratosphere, which is causing temporary warming BoyPussy? Interestingly ignorant on your part.
We’re not even certain what you’re arguing about anymore. Did you even read the articles? Have you even heard of the Hunga Tonga–Hunga Ha’apai volcano?
You’re not claiming that a 2022 undersea volcanic eruption last year caused the previous century of global warming are you?
You’re not claiming that volcanic evolution of CO2 is the cause of global warming are you?
How fizzucking dumb are you, shawty?
What exactly is your argument?
Uh, no.
Uh, yes.
Uh, yes.
Uh, no.
Uh, no.
Uh, I’m smarter than you.
Uh, you’ve proven constantly that you don’t have the intelligence nor the comprehension of a 6th grader.
Any more questions, chubby?
Cry harder, Rimjob.
BwHa! Lolgf
So Rimjob is this the reason why you’ve been soooo snippy lately?
OUCH!!!
Bwaha! Lolgf
Pups,
I missed that, it must be on death watch. Happy days are here again……..
Rimjob’s new nic be 22Cents. Yo.
Whaddya think?
It can go lower. But 22 does have a ring.