World cooling but scientists insist that warming is real
Date: 05 April 2008
By Craig Brown
CLIMATOLOGISTS may insist the world is getting warmer and that climate change is here to stay.
But the meteorological phenomenon called La Nia, in which the central and eastern Pacific Ocean is getting cooler, means global temperatures will drop slightly this year.
But this year's temperatures would still be way above the average - and we would soon exceed the record year of 1998 because of global warming induced by greenhouse gases.
The phenomenon is sister to the better known El Nio, or the Little Boy, which appears when too little cold water rises to the ocean's surface, causing the planet's temperature to rise and bringing major disruption to weather systems.
La Nia has caused floods in Mozambique, and freezing temperatures in China.
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David Parker, research scientist at the Met Office's Hadley Centre, which studies climate change and variation, said La Nia was part of the natural cycle of the world's seas.
"It happens of its own accord, and eventually, when it finishes, the effect wears off and the world's temperature will rise again," he said.
"While it is in effect, the world temperature will cool by a quarter of a degree, which isn't a lot, given that we've had a half to three-quarters of a degree warming already, but it's quite a chunk relative to the global warming we've had so far."
He added that though Britain ha