So a lot of these forest management practices are good in some locations, but they don't take into account how insanely huge Canada is. Canada has more forest area than most countries have landmass. And a lot of it is completely wild. Usually, there are fires that they just let burn, because they are threatening anything. The problem in the last few years is that hotter, drier spring and summers is leading to more and bigger fires, generating this crazy smoke cover.