TechnologyLotus leaf solar cells soak up more power Peppering the cells' surface with nanoscale domes could cut reflections and improve efficiency by as much as 25 per cent 51¶¯Âþ
TechnologyClever 'chopped' cars promise cheap electric commuting Fit existing cars with electric motors and software that understands commuters' driving patterns, and you could replace gas guzzlers for most journeys 51¶¯Âþ