Agence France-Presse: French-led technologists said they had beefed up the performance of a nano-powder that stores carbon dioxide (CO2) in what could be a step forward in tackling global warming caused by road traffic. A cubic metre (35 cubic feet) of the new substance, called MIL-101, is able to capture 400 cu. metres (14,125 cu. feet) of CO2, thanks to pores 3.5 nanometres (billionths of a metre) across, the National Centre for Scientific Research (CNRS) said in a press release. It outperforms …