A volcanic haze advisory is in effect on Guam through Wednesday morning, and the haze is likely originating from the recent eruption of Hawaii’s Kilauea volcano, the National Weather Service ...

The December 18 explosion is the region’s fourth in three years—and has fired out 10 times more lava per second than any of the past three at their peaks. Here's what happens next.

Here's What'll Happen When Plate Tectonics Grinds to a Halt. A new study says we may only have another 1.45 billion years to enjoy the dynamic action of Earth’s geologic engine.

David Ignatius writes a twice-a-week foreign affairs column for The Washington Post. His latest novel is “Phantom Orbit.” ...

Learn about and revise natural hazards and the risks associated with them with GCSE Bitesize Geography (AQA).

Fareed Zakaria writes a foreign affairs column for The Post. He is also the host of CNN’s Fareed Zakaria GPS. Prior to his current roles, Zakaria was editor of Newsweek International, managing ...

Commentary from Charles Blow, Jamelle Bouie, David Brooks, Frank Bruni, Gail Collins, Ross Douthat, Maureen Dowd, Thomas Friedman, Michelle Goldberg, Nicholas Kristof, Paul Krugman, Jennifer ...

Visitors can make their trip to Lassen Volcanic National Park safer and more enjoyable by being prepared. Planning ahead is especially important when visiting any park after a wildfire. Learn more ...

Manganese (Mn) exists as Mn(II), Mn(III), or Mn(IV) in soils, and the Mn oxidation state controls the roles of Mn in numerous environmental processes. However, the variations of Mn oxidation states ...