Snow and ice across the U.S. South are expected to relinquish their grip only slowly as the weekend continues.

Poor visibility caused by the smog led to a 48-car pile-up in Ordos City, and visibility was reduced to 30 feet in Shandong. Air pollution leads to 4,000 deaths per day in China, according to a ...

When two wind patterns bang together, the rising air is formed. A good example is wind blowing from the northwest and wind blowing from the southwest will collide and cause this “pile up” of air.

American Airlines AAL-0.51%decrease; red down pointing triangle saw flight delays but avoided a deeper Christmas Eve meltdown after a vendor technology issue briefly halted its operation Tuesday ...

A deadly winter storm is pummeling Washington, DC, and the mid-Atlantic Monday after causing hundreds of crashes and flight ...