TechnologyWill supersonic air travel's return be another white elephant? Fifty years after the unveiling of Concorde – the flawed, first supersonic airliner – its successors are coming. Maybe they’ll be the real deal, says Paul Marks Comment
EarthLatest climate talks actually made progress despite US obstinacy While the US tried to promote “clean coal†at the COP23 Bonn climate meeting, other countries called for the dirty fossil fuel to be rapidly phased out News