The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.
Grim satellite images taken by NASA show the out-of-control Los Angeles wildfires from space. One image, taken by the European Space Agency’s Sentinel-2 satellite after the Palisades Fire ...
Exceptional conditions may have fuelled the L.A. disaster, but there are real lessons in risk management that Canada must ...