year. china officials have a history of misleading public about pollution. now they are helping him collaborating on an app. it publishing realtime data and harnessing the power of the crowd. >> another extraordinary things about this application user can stake photo of suspected pollution and load it up on to a map of china. a few years ago could have put them at risk with the government. >> there's a will to control the pollution. >> reporter: in the u.s. it seems to be opposite direction. president trump signed off on keystone pipeline. it's set to be lead by fossil