Meteorologist Ali Van Fleet digs through years of research on how and when bad weather affects election outcomes.
Meteorologist Ali Van Fleet digs through years of research on how and when bad weather affects election outcomes.
An astronaut aboard SpaceX Dragon and a videographer beside a lake in Canada share two amazing views of auroras.
Aerial footage shows a humpback whale creating temporary rainbows while swimming near Rancho Palos Verdes, California.
Ticks cause emergency room visits to jump every October. CNN Medical Correspondent Meg Tirrell digs into a 35-year study in New York that reveals how climate — and a few nuts — can help predict an area’s risk for Lyme disease.
Satellite research uncovers the potential origins of the Darvaza gas crater, a fireball of methane that has been burning for decades in Turkmenistan.
As Nolo rapidly intensified, a NOAA Hurricane Hunter plane coasted over a cloud shield about 300 miles from Hawaii.
France’s wine regulators have loosened rules around champagne after a series of heat waves struck this summer.
El Niño helped set the stage for rare precipitation in Chile’s Atacama Desert, awakening dormant seeds for a fleeting display of wildflowers.
New data shows this year’s El Niño has strengthened enough to be called a super El Niño. Here's what that means.
Yellowstone asked visitors to leave no trace. Some of you misunderstood. Crews are finding thousands of discarded items in sensitive thermal areas, including a few that raise obvious questions.
Usually an invisible swirl of air, this passing dust devil became impossible to miss when it flung pool inflatables and furniture cushions skyward.
Dramatic wave-like clouds over Santa Cruz looked like a rough ocean hanging overhead, drawing attention for their unusual appearance.
Humpback, fin and minke whales were once rare sights near Greenland’s Scoresby Sound. Climate change is propelling a northward migration.
To help people prepare for hurricanes, scientists studied 40 tropical cyclones and found storm surge hits in eight ways.
Dramatic drone footage captures lava flowing from Italy’s Mount Etna, as new vents emerge and volcanic activity rumbles at Europe’s tallest volcano.
CNN Senior Climate Reporter Andrew Freedman explains what scientists mean when they describe an El Niño as the "strongest on record."
A powerful tornado toppled power lines and trees around a driver in the Appleton, Wisconsin, area. The EF2 tornado caused widespread damage in parts of the town and neighboring Menasha and Neenah, including to homes.
As temperature rises, honeybees are spending more energy cooling their hives instead of pollinating. Experts warn it could affect the food on our tables.
A Seattle-based company developed a hydrophobic spray to stencil artwork that only appears on rainy days.
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.
Meteorologist Chris Warren explores the clouds that are the byproducts of transportation and human civilization.
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.
