ottawa u.s. vice president joe biden say friday doubt whether donald trump could undo much current administration record environment many green policies firmly take hold trump take president jan. 20 say believe global warm name climate change skeptic oklahoma attorney general scott pruitt head environmental protection agency republican expect nominate another climate change skeptic u.s. representative cathy mcmorris rodgers washington state head interior department source brief matter tell reuters friday democratic president barack obama make fight global warm priority biden say businesses realize policies make sense economically constituency cross party line regardless whether next administration aggressive suggest intend way turn back tide begin roll vice president tell canadian environmental summit obama administration lift vehicle fuel standards invest heavily renewable energy push curb methane gas emissions adopt clean power plan require state cut carbon output biden say part unite state cheap use solar wind power rather rely power station fuel coal gas company executives start price carbon emissions reduction motorists enjoy refuel vehicles often say reality way intrude say whatever uncertainly exist around near-term policy choices next president absolutely confident unite state continue make progress path low-carbon future many trend mention take hold long dependent government initiatives market-driven common sense trump vow within first 100 days office rescind clean power plan eliminate unwarranted restrictions hydraulic fracture oil-drilling technology cut outdated regulations pull country global pact curb warm planet biden say one things president proud accomplish last eight years debunk myth america grow economy bring emissions time among audience biden remark canadian prime minister justin trudeau also take aggressive stance climate change biden see trump undo much environmental record