The five-part documentary premiering Sunday on National Geographic is at once highly compelling and difficult to watch, ...

As wildfire smoke becomes a frequent summer hazard across large parts of the US, knowing the risk at the neighborhood scale ...

On July 16, a magnitude 7.3 earthquake struck south of the Alaska Peninsula, and four days later, a 7.4 occurred off the east coast of Russia’s Kamchatka Peninsula. Both triggered tsunami alert ...