It's all very well to profile the most powerful people in Australia's low-carbon economy under Julia Gillard. But come September 14 -- perhaps earlier -- there's a strong chance of a new sheriff in town. The climate sector would be deeply affected by a Coalition victory, because it’s a key area of difference between the major parties. Powerful figures would be sacked or quit; some would leave the country. A fresh crop would rise to influence.

At No. 9 in The Power Index list of carbon influencers are the understudies waiting in the wings for a Tony Abbott government.