John on August 9, 2007 at 11:45 pm
The very week that Newsweek proclaims man-made global warming a certainty which only “deniers” would dispute, this story breaks. [HT: Hot Air]
Climate scientist Michael Mann (famous for the hockey stick chart) once made the statement that the 1990′s were the warmest decade in a millennia and that “there is a 95 to 99% certainty that 1998 was the hottest year in the last one thousand years.” (By the way, Mann now denies he ever made this claim, though you can watch him say these exact words in the CBC documentary Global Warming: Doomsday Called Off).
Well, it turns out, according to the NASA GISS database, that 1998 was not even the hottest year of the last century. This is because many temperatures from recent decades that appeared to show substantial warming have been revised downwards.
Click over to read the whole thing. It is now certain that NASA made a Y2K error in their critical climate data which made the 90′s look hotter than they were. Oops!
Of course this doesn’t change the situation for the entire world, just for the US. Still, it’s a significant admission. We’ll see if anyone in the MSM will cover this at all.
Category: Science & Tech |