Facing a serious threat to his leadership of the Liberal Party in Australia, Prime Minister Malcolm Turnbull has scrapped his plans to set emissions targets in his signature energy policy. The emissions targets have generated large-scale opposition in his party and rather than test his strength in a parliamentary vote, Turnbull has dropped the policy altogether. BBC: Down in the polls and desperate to hold on to his position, Malcolm Turnbull knows a leadership challenge could be near. After all, it's only three years since he launched his own "spill" to oust former prime minister Tony Abbott. Once a leader looks...