The largest thing, imo, is expanding the electrical grid. All of our talk about green transition is nonsense if we don't have a grid or system which can support the transition. None of the Trudeau era plans really grappled with this fairly obvious problem, because in my humble opinion, Trudeau was more concerned with sounding good than doing good.
The Darlington nuclear project is among the first of the announced national projects; North America's first small scale nuclear reactor. Really useful for Canada especially where we have a lot of remote communities without easy access to other energy inputs. (You should see how much is power in the North is diesel and other really dirty fuels.)
If memory serves, the Alberta pipeline MOU comes with the world's (possibly just North America's) largest carbon capture mechanism, which is incredibly useful if we want to down the road join into the EU CBAM with other countries, which would be a climate change game changer.
The next tranche of major projects is supposed to include a major wind one for the North Atlantic (again, really useful and targeted transition as a lot of power used there is oil/gas for heating.)
On Conservation, Carney has announced plans to effectively double our protected Conservation both marine and land.
Also, just today, Carney announced an MOU that doubles BC's clean power capacity while also upholding our northern tanker ban, which while not really climate change is really reassuring to hear as that ecosystem is fragile and very much at risk.
Again, is there more that could be done? Sure. But, instead of my temporary feel goods, I much prefer a plan and mandate that I think can effect long lasting change. These are the moves that position Canada for a durable green transition, without relying on a trump ex machina to win the Left the election every time. Carney's approval rating is uniquely high in the G7 I think in large part because he's doing a good job of straddling the line between the Right and Left on climate. That compromise means that I won't see everything I want but neither will my Conservative friends.
Edit: Oh, and I completely forgot allowing tens of thousands of affordable Chinese EVs into the Canadian market over the strenuous objections of Conservative premier Doug Ford.