Canada has an absolutely massive forest service as well as an insanely large forestry industry overall. They're better equipped to deal with this sort of thing than pretty much anyone else in the world. Once you reach this magnitude of crown fire there's really very little you can do.

They'll spend millions of dollars dumping water from choppers and planes, pushing in firebreaks that won't hold it - there's really nothing left to do at this stage but get out of the way. You can't hose a crown fire out, people on the ground are just risking their lives.

Firebreaks are ineffective because this thing is causing spotfires miles and miles ahead of the front.

Are we ready to take climate change seriously? If not, this is your life every summer from now on.

Signed, a wildland firefighter and forest worker from Australia.

It's a rock and a hard place situation. One of the reasons the fires are so bad now is that for many years much effort was put into preventing fires. It allows a lot of fuel to build up, so that when the fire finally gets too big to handle it's got a huge reserve to burn through. We may have to endure a few years of huge fires to get back down to the usual background level.

Yeah, Canada needs to get this under control. I sat in traffic for an hour this week to get to the beach and then when I got there... the air was full of smoke! What a waste. US politicians need to take a hardline on the Canadians here.