Reuters: Governments will have to cut greenhouse gases far more deeply than planned to control global warming and high food prices linked to droughts are a wake-up call, four leading scientists said on Thursday. “We have lost 10 years talking about climate change but not acting on it,” the experts, led by Britain’s Martin Parry who is a co-chair of a U.N. Climate Panel group on the impacts of climate change, wrote in the journal Nature. They said there was “false …