President Obama is in Copenhagen, and the climate change negotiations may hinge on how much emissions oversight China will agree to. Washington Post
environmental reporter David Fahrenthold
has the latest; and Lucia Green-Weiskel
, at the summit, works in Beijing on emissions verification issues. Also: rewriting the diagnostic manual for mental illness; math at local community colleges; and your reasons to love NYC.
Check out a map of the holiday markets happening this weekend!