An underwater volcano in Tonga dramatically changed the global climate by releasing massive steam, not just sulfur.

On top of that, the Hawaiian Volcano Observatory (HVO) reported a spike in gas emissions, including a superheated mix of ...

Uturuncu, a Bolivian ‘zombie volcano’ that hasn’t erupted in more than 250,000 years, has shown signs of life. But scientists ...

But until last year, little was known of the mountain’s geology, or its fiery formation. In his new book, and more ...