Hit the 110 F degree at my house today, but that's normal here. I honestly don't pay attention to global warming news nor do I care. The planet has cycled through Ice ages and warm ages every some odd thousand years. Last ice age what? 25 thousand years ago? Maybe we're just do for another climate shift. It's happened before 10's of thousands of years ago, we survived, it'll happen again, and we'll live on. Smoke doesn't stay in the same place, the exhaust from the factories have to go somewhere what with wind and the weather, just so happens Toronto is nearby and that's where the smoke goes.