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U.N. Forecasters: Global Temperatures to Decrease
Friday, April 04, 2008
Average global temperatures in 2008 are forecast to be lower than in
previous years, thanks to the cooling effect of the ocean current in the
Pacific, U.N. meteorologists say.
The World Meteorological Organisation's secretary-general, Michel Jarraud,
said it was likely that La Nina, an abnormal cooling of sea surface
temperatures in the Pacific Ocean, would continue into the summer.
If the forecast holds true, global temperatures will not have risen since
1998, prompting some to question climate change theory.
A small number of scientists doubt whether this means global warming has
peaked and the Earth has proved more resilient to greenhouse gases than
predicted, but Jarraud insists this is not the case and notes that 1998
temperatures would still be well above average for the century.
"When you look at climate change you should not look at any particular
year," he told the BBC. "You should look at trends over a pretty long period
and the trend of temperature globally is still very much indicative of
warming."
"La Nina is part of what we call 'variability'. There has always been and
there will always be cooler and warmer years, but what is important for
climate change is that the trend is up."
Experts at the U.K. Met Office's Hadley Centre for forecasting in Exeter
said the world could expect another record temperature within five years or
less, the BBC reports, probably associated with an episode of El Nino.
U.N. Forecasters: Global Temperatures to Decrease
Friday, April 04, 2008
Average global temperatures in 2008 are forecast to be lower than in
previous years, thanks to the cooling effect of the ocean current in the
Pacific, U.N. meteorologists say.
The World Meteorological Organisation's secretary-general, Michel Jarraud,
said it was likely that La Nina, an abnormal cooling of sea surface
temperatures in the Pacific Ocean, would continue into the summer.
If the forecast holds true, global temperatures will not have risen since
1998, prompting some to question climate change theory.
A small number of scientists doubt whether this means global warming has
peaked and the Earth has proved more resilient to greenhouse gases than
predicted, but Jarraud insists this is not the case and notes that 1998
temperatures would still be well above average for the century.
"When you look at climate change you should not look at any particular
year," he told the BBC. "You should look at trends over a pretty long period
and the trend of temperature globally is still very much indicative of
warming."
"La Nina is part of what we call 'variability'. There has always been and
there will always be cooler and warmer years, but what is important for
climate change is that the trend is up."
Experts at the U.K. Met Office's Hadley Centre for forecasting in Exeter
said the world could expect another record temperature within five years or
less, the BBC reports, probably associated with an episode of El Nino.
