Canada's Wildfire Smoke: A Harbinger of Change in a Warming World The skies above Washington state are painted an eerie orange hue by the toxic clouds billowing north from British Columbia.
For the second time this summer, the United States is grappling with the consequences of Canadian wildfires, and it's becoming increasingly clear that this is not just a matter of seasonal smoke – it's a harbinger of change in a warming world.
The declaration of a state of emergency in British Columbia on Saturday forced thousands to evacuate their homes, while air quality warnings blanketed parts of Washington, Idaho, Montana, Wyoming, Utah, Nevada, Oregon, and California.