Canada is investing $72 million on a novel satellite constellation that will monitor active forest fires across the country, ...

The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

The catastrophic fires in Los Angeles are far from extinguished, but the blame game is already raging. Apocalyptic images of entire communities returned to ash have been interspliced with a steady ...