the US Geological Survey

In 1867, Russia’s decision to sell Alaska to America turned out to be a historic mistake that was to go unnoticed for years to come. The sum paid by the US was only $7,200,000. Although, in the light of the circumstances at the time, it appeared logical, retrospectively, the act…

Across Appalachia, rust-colored water seeps from abandoned coal mines, staining rocks orange and coating stream beds with metals. These acidic discharges, known as acid mine drainage, are among the region’s most persistent environmental problems. They disrupt aquatic life, corrode pipes and can contaminate drinking water for decades.

Greenland’s economy may be small, but its real value is tied to Arctic security and vast mineral reserves. Trump’s interest in it reflects US efforts to counter China’s dominance in sourcing critical raw materials.

Do you want to build a snowman?

The South Sandwich Islands were born from a tectonic collision, forged by volcanism and relentlessly reshaped by ice, wind and waves.

The ash plume disrupted flights as far away as India.

Hundreds of residents were evacuated from their homes in one area

Japan is assessing damage and cautioning people of potential aftershocks after a late-night 7.5 magnitude earthquake caused injuries, light damage and a tsunami in Pacific coastal communities

As explosive eruptions and frequent quakes capture global attention, the Pacific 'Ring of Fire' raises questions over where risks are highest. Here are the countries most exposed — and why scientists say it's normal.

Data and aid to fight landslides fueled by bigger fires and intense storms are imperiled under Trump