Including the California drought ....blocking highs.
Natural variability alone cannot explain the extreme weather pattern that has driven both the record-setting California drought and the cooler weather seen in the Midwest and East this winter, a major new study finds.
We’ve reported before that climate scientists had predicted a decade ago that warming-driven Arctic ice loss would lead to worsening drought in California. In particular, they predicted it would lead to a “blocking pattern” that would shift the jet stream (and the rain it could bring) away from the state — in this case a “Ridiculously Resilient Ridge” of high pressure.
A new study in Geophysical Research Letters (subs. req’d) takes the warming link to the California drought to the next level of understanding. It concludes, “there is a traceable anthropogenic warming footprint in the enormous intensity of the anomalous ridge during winter 2013-14, the associated drought and its intensity.”
http://thinkprogress.org/climate/2014/04/15/3426810/california-drought-climate-change/
There are hundreds of others in a wide variety of fields that are now coming to unfortunate fruition.
Always with forward projection the big variable is human emissions...the US dropped 11% last year. mostly due to replacing coal with natural gas....that kind of shift in forcing cannot be predicted so "ranges of outcomes" are specified that take into account natural variations within the global geosystems and a best guess on emissions.
Hansen did very well given the state of the science in 1981 and it appears he underestimated climate sensitivity...new papers have confirmed ( unfortunately ) that the climate range of sensitivity is higher than determined earlier ( there is still much to be done in this area but all evidence is pointing to a higher rather than lower sensitivity )
Another "hard to call" is SO2 and aerosols ( Asian Brown cloud and global dimming ) which slows AGw by reflecting sunlight away from the surface.
You would know this is you read the science instead of the right wing rags. You ARE in a educational science forum after all.....some sense of how the world actually works is desirable.
AB ...climate scientists are by and large practical people with their feet planted....not greenies with luddite mentalities.
If you polled people in this forum ( and it has been done ) you would find 80% plus in favour of nuclear energy for instance.
There are scientists and engineers in this forum and even in this long running thread. Fluffy headed nonsense from greens or AGW deniers does not cut it here.
Swedes are very sensible industrious people and they are well on their way to a carbon neutral industrial nation by 2050.
They lead the world in that regard and are
second in the world in competitiveness so your nonsense about a retun to the 18th century is just that ....misplaced fear mongering.
And 18th century industry on today's population base can be seen in China where Beijing is choking.
China knows the score, does not deny AGW and is pouring 100's of billions into reducing and cleaning up coal use.
26+ nuclear reactors on the go, massive hydro ( 3 Gorges ), the worlds largest solar facility and stiffer vehicle mileage standards than North America.
They have to or perish in the millions from the ravages of dirty air and a shifting climate.
Europeans have vehicle fleet mileage with 50 mpg versus 25 in the US.
I drove 700 miles on in a very luxurious SUV on 42 Euros of diesel....on a single tank.
I can't do that in my van here and I was not exactly going slow either...freeway speeds are MUCH higher there.....fast lane is 100 mph plus in some areas and even then I'd get passed by a TDi doing 20 mph more or a Mercedes or Porche even higher.
Why is Noth America so backward???
We can have a clean carbon neutral industrial civilization....you aren't helping getting there...
The first world nations are by large ignoring you and even many developing nations.
Your meme is a failed one.....time to move on.
Hansen might have wanted fossil fuels to be phased out but he has a line in there for fossil fuel usage increasing continuously.
