Press Association: The Government is set to miss more than half the targets it has set on environmental issues since 1997, research has claimed. A study by centre-right think-tank Policy Exchange said 60% of green aims laid out by Labour have been missed, are unlikely to be achieved or are so vaguely worded as to make analysis of whether they’ve been met impossible. Targets set by the Government since it came to power on issues ranging from biodiversity to climate change have been or will be …