Andrew Revkin has great coverage, including a video interview with one of the authors and thoughts from Mann.
It sure looks like we ought to have be heading into another glacial period, doesn't it?
Update: From the press release:
"During the warmest period of the Holocene, the Earth was positioned such that Northern Hemisphere summers warmed more," Marcott says.
"As the Earth's orientation changed, Northern Hemisphere summers became cooler, and we should now be near the bottom of this long-term cooling trend--but obviously, we're not."