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Climate Change Is Altering Global Air Currents (independent.co.uk)
An anonymous reader quotes a report from The Independent: One of the scientists who demonstrated conclusively that global warming was an unnatural event with the famous "hockey stick" graph is now warning that giant jetstreams which circle the planet are being altered by climate change. Jetstreams are influenced by the difference in temperatures between the Arctic and the equator. But the Arctic has been warming much faster than tropical climates -- the island of Svalbard, for example was 6.5 degrees celsius warmer last year compared to the average between 1961 and 1990. The land has also been warming faster than the sea. Both of those factors were changing the flow of these major air currents to create "extreme meanders" which were helping to cause "extreme weather events", Professor Michael Mann said. In a paper in the journal Scientific Reports, Professor Mann and other researchers wrote that evidence of the effect of climate change on the jetstreams had "only recently emerged from the background noise of natural variability." They said that projections of the effect on the jetstreams in "state-of-the-art" climate models were "mirrored" in "multiple" actual temperature measurements. The jetstream normally flows reasonably consistently around the planet, but can develop loops extending north and south. The researchers, who studied temperature records going back to 1870 as well as satellite data, said these loops could grow "very large" or even "grind to a halt" rather than moving from west to east. The effect has been most pronounced during the past 40 years, they found.
No, there's not.
Some compelling evidence, yes, but I've seen nothing that's convincing.
Peer reviewed research? There is oodles of it, check out TFA for one of them.
Of course some probably are more easily convinced than others.
I can't argue with that, you conspiricy theory types are the most gullible people on the planet, all you need is a badly written website, a few poorly researched facts and people like you will believe anything.
Of course some probably are more easily convinced than others.
While others are fatally slow to appreciate danger and take evasive action ... In this particular case, however, so well publicised and so overwhelming is the evidence that a failure to be convinced more likely reflects a studied ignorance than any natural lack of perspicuity.
why isn't there more recent material published showing the proven change?
For the same reason physics journals are not filled with recent papers investigating whether falling objects move towards or away from Earth. The human contribution (established not only by the C12/C13 ratios but also by estimates of rates of fossil fuel consumption) is no longer a matter of serious dispute. The argument has moved on to issues of climate sensitivity; just what the actual effect will be on tropical storm formation &c. If you want to see the original work establishing the human fingerprint you would need to look at papers from last century, when this was still a live issue. You are better off going to the most recent IPCC summation of the science (which will link you through to original papers), which in this case would be Chapter 8 and Chapter 10 of the 2015 WG1 report of AR5.
In the meantime that link provided gives a very nice concise summary of one of the lines of evidence by which the human fingerprint was established.
I would think that ...
... you would have thanked OP for that informative link. Or were you not the AC who wanted to know how we know about the anthropogenic contribution to observed warming?
Better to be despised for too anxious apprehensions, than ruined by too confident a security. --Edmund Burke
Uhh, yeah lots of climatologists driving around in Ferraris... Those guys are way too smart to use their brains in the financial or military sectors. The real money is in siphoning pennies from government grants. Good thing Trump sees through the lies.