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The world is getting warmer, which should mean warmer winters - right? Wrong - a new study shows that global warming produces colder winters and heavier dumps of snow for large swathes of the northern hemisphere.
Warmer summers in the far Northern Hemisphere are disrupting weather patterns and triggering more severe winter weather in the United States and Europe, a team of scientists say, in a finding that could improve long-range weather forecasts. Blizzards and extreme cold temperatures in the winters of 2009/10 and 2010/11 caused widespread travel chaos in parts of Europe and the United States, leading some to question whether global warming was real. Judah Cohen, lead author of a study published on Friday in the journal Environmental Research Letters, and his team found there was a clear trend of strong warming in the Arctic from July to September.
New research, however, goes further, showing that global warming has actually contributed to Europe's winter blues. Rising temperatures in the Arctic -- increasing at two to three times the global average -- have peeled back the region's floating ice cover by 20 percent over the last three decades. This has allowed more of the Sun's radiative force to be absorbed by dark-blue sea rather than bounced back into space by reflective ice and snow, accelerating the warming process. Read more at: phys.org...
DeepVisions
reply to post by canucks555
So you're saying the polar ice is melting?
canucks555
DeepVisions
reply to post by canucks555
So you're saying the polar ice is melting?
Global average temperatures are going up. Fact.
edit on 8-1-2014 by canucks555 because: (no reason given)
The Little Ice Age (LIA) was a period of cooling that occurred after the Medieval Warm Period (Medieval Climate Optimum).[1] While it was not a true ice age, the term was introduced into the scientific literature by François E. Matthes in 1939.[2] It has been conventionally defined as a period extending from the sixteenth to the nineteenth centuries,[3][4][5] or alternatively, from about 1350 to about 1850,[6] though climatologists and historians working with local records no longer expect to agree on either the start or end dates of this period, which varied according to local conditions. NASA defines the term as a cold period between AD 1550 and 1850 and notes three particularly cold intervals: one beginning about 1650, another about 1770, and the last in 1850, each separated by intervals of slight warming.[7] The Intergovernmental Panel on Climate Change Third Assessment Report considered the timing and areas affected by the LIA suggested largely independent regional climate changes, rather than a globally synchronous increased glaciation. At most there was modest cooling of the Northern Hemisphere during the period.[8]
Several causes have been proposed: cyclical lows in solar radiation, heightened volcanic activity, changes in the ocean circulation, an inherent variability in global climate, or decreases in the human population.
Cyclical, abrupt and dramatic global and regional temperature fluctuations have occurred over millions of years. Many natural factors are known to contribute to these changes, although even the most sophisticated climate models and theories they are based on cannot predict the timing, scale (either up or down), or future impacts- much less the marginal contributions of various human influences.
While global warming has been trumpeted as an epic climate change crisis with human-produced CO2, a trace atmospheric “greenhouse gas” branded as a primary culprit and endangering “pollutant,” remember that throughout earlier periods of Earth’s history CO2 levels have been between four and eighteen times higher than now, with temperature changes preceding, not following atmospheric CO2 changes.
Professor Anastasios Tsonis, of the University of Wisconsin, said: “We are already in a cooling trend, which I think will continue for the next 15 years at least. There is no doubt the warming of the 1980s and 1990s has stopped.”
Experts from across the scientific spectrum accept that temperatures have levelled off and Britain’s Meteorological Office has produced three reports on the subject.
In July, one of the studies by the Met Office’s Hadley Centre, in Exeter, said: “Global mean surface temperatures rose rapidly from the 1970s.
“But there has been little further warming over the most recent 10 to 15 years to 2013. This has prompted speculation that human-induced global warming is no longer happening, or at least will be much smaller than predicted.”
AccessDenied
I believe the climate has been changing on this planet since it began. It ebbs and flows,freezes and melts. What I refuse to believe,is that man or anything he has done in the last 200 years has hastened a naturally occuring cycle.
Hoosierdaddy71
If liberals want to be taken seriously about global warming they need to put a muzzle on people like al gore.
abeverage
AccessDenied
I believe the climate has been changing on this planet since it began. It ebbs and flows,freezes and melts. What I refuse to believe,is that man or anything he has done in the last 200 years has hastened a naturally occuring cycle.
You seriously believe humans have no impact on the climate? Seriously?edit on 8-1-2014 by abeverage because: (no reason given)
Cuervo
Hoosierdaddy71
If liberals want to be taken seriously about global warming they need to put a muzzle on people like al gore.
SCIENTISTS. It's SCIENTISTS that want you to take this seriously.
When you get so wrapped up in an agenda to where even the freakin' weather is a political hot button... I don't even know what to say.
beezzer
reply to post by Cuervo
When politicians use weather to motivate their campaign, how can you not approach it with a cynical bent?
Hoosierdaddy71
Cuervo
Hoosierdaddy71
If liberals want to be taken seriously about global warming they need to put a muzzle on people like al gore.
SCIENTISTS. It's SCIENTISTS that want you to take this seriously.
When you get so wrapped up in an agenda to where even the freakin' weather is a political hot button... I don't even know what to say.
When you say (SCIENTISTS) i say refer to the post above yours. The scientists say what the funding tells them to, if not directly they present it in a way that flatters their sponsors politics.
Cuervo
beezzer
reply to post by Cuervo
When politicians use weather to motivate their campaign, how can you not approach it with a cynical bent?
Then attack the politics, not the science.