Telegraph: By Geoffrey Lean Published: 5:49PM BST 30 Jul 2010 Comments It says it is the most environmentally friendly government yet — but already many leading greens are becoming distinctly browned off. Just days after taking office, David Cameron announced that he was “absolutely committed” to leading “the greenest government ever”. That might have been setting the bar rather low, considering what had gone before — but, even so, verdant voices warn, ministers are …