Independent: David Cameron’s claim to lead the “greenest government ever” was thrown into the heart of the Labour leadership contest last night, amid concern about plans for a deep-sea drilling operation in the North Sea. David Miliband, one of the candidates to succeed Gordon Brown as Labour leader, said the coalition’s refusal to impose a moratorium on deep-sea drilling in the wake of the Gulf of Mexico disaster exposed its commitment to the environment as “nothing but spin”. He said: …