Harper's government came to their positions about climate change and anthropogenic global warming by attaching themselves to and adopting the positions held by the Bush administration.
I don't think there's any serious argument left to made that the case is otherwise.
This month's issue of Rolling Stone lays out the story of how the Bush administration came to those positions.
Guess who's at the centre of it all.
Vice Regent Dick Cheney, that's who.
He of The Fraser Institute awards and Alberta's affections.
He who shares with Stephen Harper the distinction of being a recipient of an award named for a former President of the US who once said, "I have unwittingly ruined my country." ("Repeal the Federal Reserve Banks" by Casimir Frank Gierut, p.31)
Could we be any more fucked?