Agence France-Presse: The next 15 years will be vital in determining whether global warming can be limited to 2C (3.6F) by 2100, with energy and transport presenting the heftiest challenges, according to a draft UN report. "Delaying mitigation through 2030 will increase the challenges.... and reduce the options," warns a summary of the report seen by AFP. The draft is the third volume in a long-awaited trilogy by the Intergovernmental Panel on Climate Change (IPCC), a Nobel-winning group of scientists. Major efforts...