The inadvertent cloud-seeding effect occurs up to about 6 percent of the time at major airports.

Hazy skies and fiery sunsets were noted across much of the central United States after the huge Wallow Fire developed in Arizona. But there’s also a quantitative way to track fire’s impact on the surrounding air.

The Sun drives our climate, so a slowdown in solar activity would surely put the brakes on global warming—wouldn’t it? That question percolated through the media following a set of reports from a solar physics meeting.

The economic impacts of routine weather events can add up to 3.4% of the nation's GDP.