October 10, 2009 - I do not have a position on global warming beyond the fact that it's happening. In the face of indisputable evidence of retreating glaciers, thawing permafrost and a navigable passage opening up through the heretofore ice-blocked Arctic Ocean, it would take ostrich-like head-in-the-sand ignorance to deny it. So I experienced some cognitive dissonance in reading the following from Climate Correspondent for the BBC News, Paul Hudson:
"... the warmest year recorded globally was not in 2008 or 2007, but in 1998... For the last 11 years we have not observed any increase in global temperatures. And our climate models did not forecast it, even though man-made carbon dioxide, the gas thought to be responsible for warming our planet, has continued to rise."
Tell that to the glaciers in Greenland.
Hudson's article goes on to discuss the debate on the causes of climate change. The warming observed at the end of the last century could have been caused by the sun or by a heat cycle in the Pacific Ocean... or maybe not. The earth may cool for the next decade or three... or maybe not. Global warming may begin with renewed vigor in another decade or two... or maybe not.
In the face of all this complexity I'm keeping it simple and watching those glaciers. As long as they're retreating I'll say that the earth is clearly warming.
Here's a link to Hudson's story.










