… has found winters in northern China have been warming since 4,000BC – regardless of human activity – but the mainland scientists behind the research warn there is no room for complacency or inaction on climate change, with the prospect of a sudden global cooling also posing a danger.
The study found that winds from Arctic Siberia have been growing weaker, the conifer tree line has been retreating north, and there has been a steady rise in biodiversity in a general warming trend that continues today. It appears to have little to do with the increase in greenhouse gases which began with the industrial revolution, according to the researchers.
Lead scientist Dr Wu Jing, from the Key Laboratory of Cenozoic Geology and Environment at the Institute of Geology and Geophysics, part of the Chinese Academy of Sciences, said the study had found no evidence of human influence on northern China’s warming winters.

So 97% of scientists don’t agree? This is my shocked face.
97% of “scientists” agree the climate changed. Who are the 3% who don’t know that already?
They used to grow grapes and make wine in England during the Medieval Warming Period. As the Greenland glaciers retreat they are finding Viking farmsteads.
The Sun is getting quiet, with fewer sunspots, similar to the Maunder Minimum which occurred during the Little Ice Age. The satellite data has shown no warming for the last eighteen years.
Global Warming is not a civilization destroying problem. Global cooling could be that problem.
“Lead scientist Dr Wu Jing, from the Key Laboratory of Cenozoic Geology and Environment at the Institute of Geology and Geophysics, part of the Chinese Academy of Sciences, said the study had found no evidence of human influence on northern China’s warming winters.
C’mon green slime, don’t disappoint me! Build that narrative that proves the tentacles of “BIG OIL” have compromised this Chi-com denier!
Yeah, China giving itself cover, so it can continue to do whatever it wants, with the continued blessings of the “eco” warriors.
Or SSJWs (Schutzstaffel Justice Warriors) as I prefer to call it as I see it.
It’s not rape rape.
It’s not infanticide infanticide.
It’s not black people killing black people.
It’s not hate hate.
I am probably going to start punching a lot of deserving people in the face. Liars are the worst possible people.
Both sides of the global warming debate drive me crazy. Both sides are dominated by simplistic thinkers that refuse to acknowledge the bigger picture.
Humans are producing greenhouse gases. Those gases can increase the temperature. There are also many other variables involved in earth’s climate : solar cycles, glacial/interglacial cycles, AMO and PMO cycles and dozens of other short, medium and long term cycles…none of which humans control.
So human greenhouse gases do produces warming but so do the other cycles, most of which are more powerful than human intervention. These are the same natural cycles that produced the medevial and Roman warming periods. Conversely, greenhouse gases can be warming the atmosphere while the other cycles are simultaneously cooling it, producing an overall cooling effect even as CO2 emissions increase.
Think of the climate variables like a household budget. You can get a raise and have more disposable income but you could also have less disposable income. It depends on what’s going on with your expenses. If too many of your other bills go up and government taxes/fees increase, even incrementally, the cumulative effect is that you have less disposable income. The myopic, politicized economist will tell you to shut up about your decrease in living standards because of how much bigger your wages are but they don’t bother to investigate the other variables that might complicate the narrative.
That’s the state of climate science and debate today. People only want you to see a part of the climate picture, the one that supports their agenda. Very few honest brokers.
So LC Bennet; answer a simple question.
AT WHAT LEVEL OF CO2, (in PPM) DOES PLANT LIFE ON THE PLANET STOP?
Let’s see if LC can provide a simple 1 sentence answer, of if he spouts off paragraphs of nonsense without ever answering…
There isn’t a single CO2 concentration where “life” on the planet ceases to exist. Plants have a certain minimum threshold which you can look up. Below that level plants would begin to die off causing mass extinction of the higher lifeforms that depend on them. But, certain types of bacteria would be fine. Via evolution, life on earth is incredibly robust. There’s some form of life at virtually every niche on the planet. Humans, as a species, are one of the hardiest lifeforms. There’s very few places on earth we can’t colonize,or at least visit. Figuring out how to survive low CO2, or high CO2, is something humans could do.
You get that I’m not a CAGW supporter right? Probably not because you, Kevin, are so quick to anger that you respond before thinking or understanding what others are saying. One of the simplistic type of thinker I was describing in my second sentence of the previous post. Thanks for proving my point.
Tells me all I need to know; you cannot (or will not) give the simple answer.
FYI, it’s around 150 PPM, where life on the planet does actually stop. Yes, contrary to your assertion; there IS, in point of fact, a single level of CO2 concentration on the planet where it all stops.
It is not complicated. And I will accept no shame from the shameless.
If anyone is interested, here is one starting point.
https://wattsupwiththat.com/2017/06/30/life-on-earth-was-nearly-doomed-by-too-little-co2/
I read your link. You need to reread it. Take note that the author talks about humans, plants and animals. Which is exactly what I said would be affected. He doesn’t say all life on earth because he’d look like an idiot if he said that. There’s a lot more life on earth than those categories.
Small correction : it’s not PMO in the first post, it’s PDO – Pacific decadal oscillation.
The specified link doesn’t mention 150 ppm.
Says 180 ppm CO2 combined with drought and cold, was responsible for killing off much of the plant life.
A cursory search of the net says CO2 levels of 150 to 225 ppm will kill off plant life, depending on the type of plant.
Joe, good research skills and reading comprehension; I LIKE IT.
C4 and CAM plants can apparently survive levels of CO2 lower than 150 PPM; but most of the plants on the planet (about 85%) are C3 plants, and the photorespiration does them in, in low carbon environments. About 3% of plant species are C4 plants (sugar cane, corn), about 10% are CAM plants (cactus, agave).
I am not a plant biologist, but lots of easy to digest information when you search for it.
LC,
That is really a stupid weasel. Duh, you can look up at which point “higher lifeforms” will die off. But duh don’t worry about that, life on earth is incredibly robust, and some bacteria will survive.
I mean, are you intentionally thick headed? What people want to know is, at which point will human life not be supported by other “higher lifeforms”? Is that too hard for you to comprehend? Who the heck cares if some bacteria will survive or not, just to make you technically correct? No one, except you. Presumably you will morph into a bacteria so won’t give a fig if humans die off or not.
In your original post you managed to give the points on both sides, I’ll give you that. But you don’t give any numbers. How much more powerful are natural causes than “human intervention”? Would changing “human intervention” appreciably change the temperature? The temperature vs. CO2 concentration does not go on forever being linear. It flattens and become asymptotic. You didn’t mention that geologically speaking, the earth is near all time lows in both temperature and CO2 concentration. The earth had periods of time with five to ten times the present CO2 concentration, and that did not result in global warming. But half the present CO2 concentration, and you will really be facing the possibility of “all” (i.e. human and support) life being extinguished.
The choice is simple. Drastically change all developments of civilization that we fought so hard to obtain, return to the miserable life pre industrial revolution, and hardly make any difference at all, or do what we have been doing and the earth will take care of itself. In addition to life, the earth itself is “incredibly robust,” and will do just fine, thank you.
LC at 150 ppm of CO2 we are all dead.
250m years ago the CO2 ppm using ice core samples was 6000 ppm and golly gee here we are. 6000 ppm of CO2 hard physical evidence not some Wankerati playing with failed simulations on a computer. The earth did not burn up, the animals did not burn, the plants thrived. Mankind what there was representing man, was making love under those same stars and sun we see today, and kept right on breeding and Fooking there way along until we now have over 8B running around. Come to grips with your crazy shit and think for yourself with that lump you hang your hat on. The Planet was fine as George Carlin said. But the People are sure Fooked Up. If you can get near to a Priest of the Global Warming Church, do us all a favor and Club Him like a seal.
LC, The bigger picture?
So far CO2 is batting zero,no one has measured it having any effect on Temperature.
The “heating of that “Estimated Average Global Temperature,is pure conjecture.
As if anyone can accurately calculate the global temperature at anytime,but especially for 1950 or 1850 which the “Alarmed Ones claim as their reference.
According to the Cult,mans participation starts 1950,they say no natural drivers of climate since then.
So “Big Picture” Fools and Bandits trying to live well without working.Their preference is to steal from the productive,evidence is in,they will use any meme,sink to previously impossible lows,in their lust for wealth and power.
With low Solar activity for some time now … and no apparent warming other than in the minds of fools, logic dicates that cooling may occur. I have always believed that slipping into a cooling period is more likely than the reverse. Cooling would be much more devastating than warming. If anyone can’t figure that out, they are too dumb to be concerned about.
If we can no longer adapt to changes on this planet, then perhaps out time has come. Or … perhaps we have become so fragile and frightened of everything that we simply cannot deal with what humans have always had to deal with in the past.
Meanwhile the orcs of globalism are using this fear mongering over climate to pick our pockets and curtail many of our freedoms.
We are living in sick times.
A supplementary question.
We are now at roughly 410ppm CO2.
At what rate in ppm is it increasing? At what level does CO2 become dangerous to humans? At current rate of increase, how many years is that?
That study sounds to me like we are in an inter-glacial period with all that implies. Who would have thunk it!
I have been in Northern China in the winter. The biggest issue is the wind. It sucks the heat right out of your body. Also, the daily swings in temperature can be huge because much of it is desert. From day to night the temperature can drop 20-30 degrees. What good is global warming when daily temperature swings are so large and the wind blows the cold right through your bones?
Additionally, global warming is making nights and winters warmer far more than hotter days and hotter summers. The global warming effect is also greatest at the colder parts of the earth and less at the equator. So greenhouse gases are moderating the climate for flora and fauna in cold areas and having a slight warming effect in the warmer parts. Elevated CO2 has also promoted global greening. All of these beneficial effects are suppressed, as good news so often is.
Now China,has a record of weather,crop yields and taxes going back 5000? years.
Naturally that is inconvenient for the narrative.
The Chinese have not bought in,to the Catastrophic Anthropogenic Climate Scam, which requires one to be willfully blind of history,physics and weather.
All those “skills” that the graduates from our public education excel in…
Extraordinary claims require extraordinary evidence.
Not extraordinary gullibility.
So the fact that most plants on earth are C3 plants, tells me that most life on the planet developed during high carbon periods… Interesting.
Most life on the planet is optimized for high carbon environments…
I’m pointing to the Sun, the Molten Core and Cosmic Radiation long before I blame puny humans.
Answer to question up thread:
We are now at roughly 410ppm CO2. At what rate in ppm is it increasing? At what level does CO2 become dangerous to humans? At current rate of increase, how many years is that?
In concentrations up to 1% (10,000 ppm), it will make some people feel drowsy and give the lungs a stuffy feeling.
Let’s do some math. We’ll get drowsy with an addition of 10,000 – 410 = 9590 ppm. At the current rate of increase of roughly 2 ppm it will take 9590 / 2 = 4795 years for you to start feeling sluggish.
That’s why you should panic about “CO2 pollution!”