The "zombie" volcano, called Ulturuncu, has not erupted in the past 250,000 years but has shown signs of imminent blasting.

Over the Sierra crest — about 150 miles to the east of Manteca, Oakdale, and Turlock — is one of the world’s largest active ...

Reflecting the sun’s rays back to space to prevent climate change, known as solar geoengineering, is as controversial as it is intriguing.

Have you ever wondered how meteorologists seem to predict the wild swings of weather with such precision? The secret often ...