The greenhouse effect was discovered more than 150 years ago and the first scientific paper linking carbon dioxide levels in ...

Hawaiian volcanoes suddenly go quiet, but scientists don’t know exactly why. The pause in Mauna Loa and Kilauea’s eruptions highlights broader challenges experts face in understanding when and ...

Hawaii's Mauna Loa, the world's largest active volcano, started erupting Sunday night and lava was flowing from its summit by Monday morning, the U.S. Geological Survey said.

Mauna Loa last erupted in 1984. Its smaller, more active neighbor, Kilauea volcano, has been erupting continuously for more than a year since September 2021.

Hawaii's Mauna Loa volcano, background, towers over the summit crater of Kilauea volcano in Hawaii Volcanoes National Park on the Big Island on April 25, 2019. Caleb Jones/AP, FILE.

Heading to the Big Island and hoping to see real lava on your Hawaiian vacation? Scroll to find out everything you need to ...

If you’ve been following the ongoing episodic summit eruption of Kīlauea volcano on the Big Island, you might have seen the ...

Several flight operations are planned for July: Between 6 and 11 a.m. July 8: Ungulate survey at between 2,000 and 6,000 feet ...

If you feel brave enough to hike the world's largest active volcano, head to Hawaii's Big Island for a 13,681-foot-high multi-day trek through the wilderness.

Mauna Loa Volcano in Hawaii Erupts for the First Time in Nearly 40 Years. No evacuation orders were issued, but officials advised residents to review their preparedness plans.