Continuing heat, smoke from Canada covers half of US population
WASHINGTON D.C.: Due to an ongoing heat wave and poor air quality caused by Canadian wildfires, the US National Weather Service urged half of Americans to take precautions when outdoors over the long Fourth of July weekend.
The service said that even before the July 4th holiday, some 80 million people in California, the Deep South and the lower Mississippi Valley would be under excessive heat warnings and heat a