Monday, October 15th 2012, 6:30 AM EDT
GLOBAL warming stopped 15 years ago, it was claimed last night.
Met Office figures show that the average temperature between 1997 and 2012 did not rise at all and that the previous warming trend has levelled off. But critics say the Met Office put this research onto the Internet without publicity - in contrast to the attention it gave to figures released six months ago which reinforced the case for global warming.
Those figures went up to 2010 - the hottest year on record - and showed a continuing warming trend.
Campaigners yesterday slammed the Met Office tactics and questioned the Government's drive for costly green energy such as wind turbines which add about £100 a year to domestic energy bills.
Dr Benny Peiser of Lord Lawson's Global Warming Policy Foundation said: "It is quite scandalous that the Met Office is misleading the public.
"The latest data proves beyond any doubt that that there has been no warming over the past 16 years.
"Nobody knows what this means long term and how long this pause is going to last.
"Though we are in a period of accelerating greenhouse gas emissions the climate is not responding in the way that climate models have predicted.
"Global warming is not a looming disaster. We need to reassess the Government's climate change policies such as the drive for renewable energy which is extremely expensive.
"These figures do not mean there is no problem long term but they show it is not the imminent disaster we have been told about.
"We have more time to come up with a more moderate and more realistic solution rather than just running around like headless chickens."
Professor Judith Curry, of the School of Earth and Atmospheric Science at America’s Georgia Tech University, said: "The new data confirms the existence of a pause in global warming."
The HadCRUT4 global temperature dataset was compiled by the Met Office and the University of East Anglia’s Climate Research Unit.
In 2009 the CRU was at the centre of the "Climategate" scandal when leaked e-mails appeared to show scientists fiddling data to support the case for man-made global warming.
Subsequent inquiries cleared the scientists of any wrongdoing - but the e-mails, leaked just before the Copenhagen climate summit, severely damaged public confidence in climate research.
In one of the leaked e-mails the CRU's Dr Phil Jones said the "'no upward trend' has to continue for a total of 15 years before we get worried."
But yesterday he insisted that 15 or 16 years is not a significant period because such pauses had always been expected.
He added: "I still think that the current decade which began in 2010 will be warmer by about 0.17 degrees than the previous one, which was warmer than the Nineties."
He admitted: "We don’t fully understand how to input things like changes in the oceans, and because we don’t fully understand it you could say that natural variability is now working to suppress the warming. We don’t know what natural variability is doing.
"“It could be that natural variability is acting at present to counter the warming, but if it switches we could be in for more warming."
He added that the dataset was released without publicity because "it doesn't change much".
The Met Office said: "Choosing a starting or end point on short-term scales can be very misleading. Climate change can only be detected from multi-decadal timescales due to the inherent variability in the climate system.
"Looking at successive decades over this period, each decade was warmer than the previous – so the 1990s were warmer than the 1980s, and the 2000s were warmer than both. Eight of the top ten warmest years have occurred in the last decade.
"Over the last 140 years global surface temperatures have risen by about 0.8ºC.
"However, within this record there have been several periods lasting a decade or more during which temperatures have risen very slowly or cooled. The current period of reduced warming is not unprecedented and 15 year long periods are not unusual."
Source Link: express.co.uk