Bloomberg: The climate agreement reached Dec. 12 in Paris leaves the door open to dependence on unproven uses of negative emission technologies like biomass energy with carbon capture and storage, but it's still a step forward for fighting climate change, scientists told Bloomberg BNA. Nearly 200 nations reached an historic climate agreement Dec. 12, after United Nations talks that exceeded their two-week deadline. The 32-page agreement calls for holding the increase in the global average temperature to...