Guardian: Last week a leaked government document revealed that Labour ministers are lobbying the EU to allow Britain to meet up to half of its 2020 emissions reductions targets by buying credits from the developing world. It is true that a tonne of carbon dioxide pollution saved in Bangalore is the same as a tonne saved in Birmingham – but by paying others to make carbon reductions for us, Labour are selling Britain short by subsidising abroad the efficiencies and savings we need to make at …