Guardian: Until recently, even friends of Gordon Brown scarcely bothered to pretend he had much interest in the environment. Poverty and education, they said, got him out of bed; climate change was something he approached intellectually, not instinctively. Less friendly colleagues would put it more bluntly: the subject bored him rigid. There are welcome signs that the prime minister’s preoccupations are shifting. Having developed a taste for financial statesmanship of late, Mr Brown is now said to …