EarthFrom AC to DC: Going green with supergrids Power lines stretching across continents would allow us to ditch fossil fuels for good – and prove Edison right about direct current in the process Features
EarthA smarter way for oil firms to pay for eco damage Getting oil and gas companies to contain the harm they do to the environment just got a little easier, thanks to a new way of modelling changes in land use 51¶¯Âþ