But McCain can help Cameron in policy terms too. Cameron has struggled to come up with an inspiring way to talk about his greenery, it can sound rather too doom and gloomy. McCain offers a solution to this problem. He talks inspiringly about how tackling climate change is going to create jobs not cost them, spur economic growth not constrict it and increase rather than harm America’s competitiveness. If Cameron did this, I suspect that he would find the right far more congenial to his greenery than it currently is.