Nazaré, Portugal, is home to some of the world’s biggest waves. The reason lies beneath the surf, in the form of Europe’s largest underwater canyon.
Nazaré, Portugal, is home to some of the world’s biggest waves. The reason lies beneath the surf, in the form of Europe’s largest underwater canyon.
Record-challenging temperatures and oppressive humidity are creating dangerous conditions for outdoor celebrations.
Dark ash and steam burst from the Philippine volcano on Tuesday, with three explosive pulses creating plumes for four and a half minutes.
Dramatic video shows hail piling so quickly during an Idaho thunderstorm that floodwaters carried a blanket of ice through neighborhood streets.
Meteorologist Chris Warren explores the clouds that are the byproducts of transportation and human civilization.
Video from Bordelonville, Louisiana shows pigs swimming through floodwaters caused by the remnants of Tropical Storm Arthur.
A "volando" was seen swirling next to lava fountains during the Kilauea volcano’s latest eruption on Hawaii’s Big Island.
This lake, located just outside of Osoyoos in British Columbia, has distinctive, colorful spots that are created by a combination of its chemistry, geology and climate.
CNN's Laura Paddison explains how a new study links this "cold blob" in the Atlantic Ocean to the weakening and potential collapse of a critical system of ocean currents that would have catastrophic consequences worldwide.
