I’ve been doing lots of reading in the last few months on climate change and justice so it was with interest I spotted this article in The Telegraph which refers to an article entitled “Whatever happened to global warming?” by Paul Hudson the BBC’s reporter on climate change.
He writes about how the earth’s temperature has not risen since 1998, and goes on to write about recent research which predicts we are in for 30 years of cooling caused by the falling temperatures of the oceans.
According to research conducted by Professor Don Easterbrook from Western Washington University last November, the oceans and global temperatures are correlated.
The oceans, he says, have a cycle in which they warm and cool cyclically. The most important one is the Pacific decadal oscillation (PDO).
For much of the 1980s and 1990s, it was in a positive cycle, that means warmer than average. And observations have revealed that global temperatures were warm too.
But in the last few years it has been losing its warmth and has recently started to cool down.
These cycles in the past have lasted for nearly 30 years.
So could global temperatures follow? The global cooling from 1945 to 1977 coincided with one of these cold Pacific cycles.
Professor Easterbrook says: “The PDO cool mode has replaced the warm mode in the Pacific Ocean, virtually assuring us of about 30 years of global cooling.”
Whilst there have always been sceptics to climate change this seems a bold article to publish. He ends his article by highlighting the serious debate going on in the scientific world:
Both sides have very different forecasts. The Met Office says that warming is set to resume quickly and strongly.
It predicts that from 2010 to 2015 at least half the years will be hotter than the current hottest year on record (1998).
Sceptics disagree. They insist it is unlikely that temperatures will reach the dizzy heights of 1998 until 2030 at the earliest. It is possible, they say, that because of ocean and solar cycles a period of global cooling is more likely.
One thing is for sure. It seems the debate about what is causing global warming is far from over. Indeed some would say it is hotting up.