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