If the environazis want "nuance", they should hire John F'n Kerry. After all, he could use a full-time job.
Check it out... here's the essay he's talking about:
http://www.grist.org/news/maindish/2005/01/13/doe-reprint/
Looks like their solution is to become even MORE alarmist and hysterical. Their premise appears to be that any deviation from precisely average weather is the fault of human beings.