Of the limited contributions of significance Canada could make, I think that the move to LNG would probably be the second most significant contribution.
The largest producer of greenhouse gas emissions in Canada is the Government of Canada, followed by the provincial governments. Look at the release of GHGs from forest fires. If you own the land, you own the emissions. Forestry policy is one area I haven't heard the government speak about, in terms of forestry management practices such as cutting. Modern forestry practices would be a huge contribution.
LNG exports would be second. Our LNG is going to Asia, but it's going through Mexico. How about having us sell it, having us reap the rewards by selling lower-impact LNG? It just seems to make sense.
I think it's a policy in search of a problem.