Aiming Low On Climate Change?

Joshua Keating reads Obama's address to the UN yesterday and writes:

It seems telling that [he] ended his [speech] not with a stirring call to action, but by urging pragmatism and compromise. [...] It sounds a bit like Obama is premptively defending a climate bill that will probably turn out to be less aggressive than the other delegates in Copenhagen might like and like Bill Clinton, is looking to assure environmentalists that any bill is better than none if it moves the ball forward.