Age: Too hard for the politicians? In one town unlikely allies are fighting climate change and winning. Michael Green reports. SO FAR, the carbon trading debate has been cast as a battle between greedy businesses on one side and rabid greenies on the other. That’s not how it works in Castlemaine. There, under the Maine’s Power scheme, the four major employers in the region have quietly teamed up with the local sustainability group and CSIRO to slash their ecological footprints. The …