Age: ROSS Garnaut’s interim report on climate change has opened up divisions at both ends of the political spectrum. On the left, the Greens are attacking the Government for not embracing the need for more ambitious greenhouse reduction targets, while on the right, backbenchers are expressing dissent from the Coalition’s official position of keeping an open mind on targets. The report, by Canberra’s top adviser on climate change, suggests the Government’s pre-election promise of a …