"Has Trump provided cover for Conservatives to change on climate?"
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Of course he has. And a good number of Canadian liberals and  everyone else.
When it comes to 'Canadian values' and money, think of the Saudi Arabian arms deal and not only the deal itself but they way it played out by the politicians (and the posters here).
Combine that with the perception that Canada's greatest enemy will have an 'unfair advantage' over Canada and it's inconceivable that Canada will either not drop out of the Paris accords or implement anything significant from this day forward.

Far and away most of the people who are in hysterical mode over this have very little knowledge at best as to what the issues are.  This is very similar to the frenzy that happened when the U.S. started to get a handle on the illegal immigration mess of 10 million people. And today Canada has a near national catastrophe over less than a thousand illegals crossing the border.