The risk of an exploding glacier is heating up in Iceland

Icelandic Meteorology Office closely monitoring Bárðarbunga, a volcano more than 2,000 meters in elevation, located beneath the country’s largest glacier. Aviation code now back down to orange.

2014 Gulf of Mexico dead zone has grown to 5,052 square miles

Scientists head out to the Gulf of Mexico every summer to measure the size of the dead zone—an area with oxygen levels that are too low to support most marine life.

The Great Pacific Garbage Patch explained

In light of the sheer physical enormity of the Great Pacific Garbage Patch and the complexity of its causes, what can we possibility do about it?

Video: It’s giant panda triplets!

They are the world's only known surviving set of giant panda triplets, born at a zoo in southern China. All three are adorable ... and expected to survive.

Video: Baby elephant sees ocean for the first time

To celebrate World Elephant Day ... It's an EarthSky favorite!

Iselle and Julio deliver one-two punch to Hawaii

More than 800 people on the Big Island went into evacuation shelters Thursday. Storm surges, high winds, downed trees and power lines, loss of electricity, blocked highways.

California fire clouds

Fires raging over California last week created these towering pyrocumulus clouds - aka "fire clouds." A close look from jets flying nearby.

Humid cities are worse urban heat islands than dry cities

In a study of 65 cities across N. America - some humid and some dry - poor "convection efficiency" in humid cities made the urban heat island effect more intense.

Horses communicate with expressive eyes and mobile ears

Do you think horses have expressive eyes? They do, say researchers, and they also have expressive ears.

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