I don't know why you need lasers.

You could seed it. Any evidence destroyed in a blaze.

Otherwise seeding has likely caused this. A history of deforestation. A history of stupidity. A history of adding millions of people into its nation. One of the highest on the Planet for immigration. Then it's wahaa climate change. Until democracy is hypocrisy.

How many has Canada added into its population. Directly into the Arctic. While deforesting for urbanisation and agriculture. Next they need better weather or weather they control.

What is that element that is highly flammable? You wouldn't need a DEW. The dust is enough to ignite in dry conditions. No residual traces it's burnt into the fauna. DEW you need more hits, it would have trace points.

Aside from any conspiracy. It's plain stupidity that cause. How many years of it already. Nobody on top of it until it's too late.

But regardless in the tilt, true North on the move. A solar medium. Where is that heat affecting more. Where have the flares hit. We have had these recently, affecting coms and satellites. In our Northern hemisphere?

In short you could accelerate it so many ways, but most leave traces. Any conditions are already exasperated.