The finest particles pose the greatest risk because they can penetrate deep into the lungs and cause death by asphyxiation in the worst cases. Mild, short-term symptoms often resolve with rest.

South Florida continues to experience harmful algal blooms from phosphorus reaching rivers and the coast, resulting in fish kills and the deaths of manatees. Red tide can shut down fishing and keep ...

Mount Spurr in Alaska might erupt soon, triggering an ash cloud shrouding Anchorage and other communities. The summit crater ...

Mount Spurr, located roughly 75 miles from Anchorage, Alaska, may erupt in coming weeks, experts say. The Northern Lights may be putting on an encore performance Saturday night after putting on a ...

Get the Central Building Shipping Arcade, Central and Western local weather forecast by the hour and the next 10 days.

Mount Spurr, which scientists say is likely to erupt in the coming weeks or months, is about 80 miles west of Anchorage. But ...