Global temperatures 'to decrease'But because it is cooling... that's just variability caused by La Nina. The heating caused by El Nino... that's global warming.
By Roger Harrabin
BBC News environment analyst
La Nina caused some of the coldest temperatures in memory in China
Global temperatures this year will be lower than in 2007 due to the cooling effect of the La Nina current in the Pacific, UN meteorologists have said.
The World Meteorological Organisation's secretary-general, Michel Jarraud, told the BBC it was likely that La Nina would continue into the summer.
This would mean global temperatures have not risen since 1998, prompting some to question climate change theory.
"When you look at climate change you should not look at any particular year," he said. "You should look at trends over a pretty long period and the trend of temperature globally is still very much indicative of warming."But if memory serves me right, 2007 was supposed to be one of those record years and when that didn't happen the timetable was moved to 2009 and now that it is obvious earth is cooling off... well, maybe the next warming will be 2012 or 2013.
"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 UK Met Office's Hadley Centre for forecasting in Exeter said the world could expect another record temperature within five years or less, probably associated with another episode of El Nino.
It's going to happen. Just wait. One of these years we'll have another hot year. Then we can tell everyone that global warming is back!Yes, dear. Eventually there will be another hot year and you can be right.