State health officials urge the public to take precautions as volcanic gas emissions — and volcanic smog known as vog — ...

A landfill site that prompted thousands of complaints about the smell of "rotten eggs" falls within safety standards, a ...

The researchers used a cutting-edge combination of satellite and ground-based monitoring to track sulfur dioxide emissions from the Sundhnukagigar volcano, which erupted in 2023. This toxic gas ...

according to the EPA’s greenhouse gas equivalency calculator. “If this outfit continued in existence for 100 years at its pace, it would not equal in terms of sulfur dioxide what any given ...

The startup is basically two guys from Silicon Valley who have been releasing weather balloons filled with hydrogen gas and sulfur dioxide particles. When the balloon floats somewhere past 66,000 ...

For decades, scientists have debated what wiped out the dinosaurs 66 million years ago. The usual suspects? A massive ...