bekisman
21-Oct-11, 08:06
Well at last a real look to clear up the confusion. AND it might be anthropogenic global warming (caused by us).. well, must admit even a 'scientist' on here had his doubts about that, so what hope was there for us poor illiterates..
"The Earth's surface really is getting warmer, a new analysis by a US scientific group set up in the wake of the "Climategate" affair has concluded. "Climategate", in 2009, involved claims global warming had been exaggerated.
Emails of University of East Anglia (UEA) climate scientists were hacked, posted online and used by critics to allege manipulation of climate change data. The Berkeley group says it has also found evidence that changing sea temperatures in the north Atlantic may be a major reason why the Earth's average temperature varies globally from year to year.
The project was established by University of California physics professor Richard Muller, who was concerned by claims that established teams of climate researchers had not been entirely open with their data."We were concerned that the climate scientists were not putting all their data into the public domain, whether using Freedom of Information rules or anything else," he told BBC News."Science should be open, and data should be open, as a matter of principle."
Since the 1950s, the average temperature over land has increased by 1C, the group found.
The Berkeley group does depart from the "orthodox" picture of climate science in its depiction of short-term variability in the global temperature.
The El Nino Southern Oscillation (ENSO) is generally thought to be the main reason for inter-annual warming or cooling.
But by the Berkeley team's analysis, the global temperature correlates more closely with the state of the Atlantic Multidecadal Oscillation (AMO) index - a measure of sea surface temperature in the north Atlantic.
There are theories suggesting that the AMO index is in turn driven by fluctuations in the north Atlantic current commonly called the Gulf Stream.The team suggests it is worth investigating whether the long-term AMO cycles, which are thought to last 65-70 years, may play a part in the temperature rise, fall and rise again seen during the 20th Century.
But they emphasise that anthropogenic global warming (AGW) driven by greenhouse gas emissions is very much in their picture.
http://www.bbc.co.uk/news/science-environment-15373071
"The Earth's surface really is getting warmer, a new analysis by a US scientific group set up in the wake of the "Climategate" affair has concluded. "Climategate", in 2009, involved claims global warming had been exaggerated.
Emails of University of East Anglia (UEA) climate scientists were hacked, posted online and used by critics to allege manipulation of climate change data. The Berkeley group says it has also found evidence that changing sea temperatures in the north Atlantic may be a major reason why the Earth's average temperature varies globally from year to year.
The project was established by University of California physics professor Richard Muller, who was concerned by claims that established teams of climate researchers had not been entirely open with their data."We were concerned that the climate scientists were not putting all their data into the public domain, whether using Freedom of Information rules or anything else," he told BBC News."Science should be open, and data should be open, as a matter of principle."
Since the 1950s, the average temperature over land has increased by 1C, the group found.
The Berkeley group does depart from the "orthodox" picture of climate science in its depiction of short-term variability in the global temperature.
The El Nino Southern Oscillation (ENSO) is generally thought to be the main reason for inter-annual warming or cooling.
But by the Berkeley team's analysis, the global temperature correlates more closely with the state of the Atlantic Multidecadal Oscillation (AMO) index - a measure of sea surface temperature in the north Atlantic.
There are theories suggesting that the AMO index is in turn driven by fluctuations in the north Atlantic current commonly called the Gulf Stream.The team suggests it is worth investigating whether the long-term AMO cycles, which are thought to last 65-70 years, may play a part in the temperature rise, fall and rise again seen during the 20th Century.
But they emphasise that anthropogenic global warming (AGW) driven by greenhouse gas emissions is very much in their picture.
http://www.bbc.co.uk/news/science-environment-15373071