But the Army's lease for state lands beneath a key part of the training range expires in 2029. Native Hawaiians upset with ...

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

Nahuku Thurston Lava Tube in Hawaii Volcanoes National Park is one of the most amazing natural wonders you can visit and ...

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

The Mauna Loa Observatory in Hawaii, which has been at the forefront of global climate monitoring since the 1950s, is facing ...

The Mauna Loa laboratory in Hawaii has measured atmospheric carbon dioxide, which — along with other planet-warming pollution ...

Dominant trade wind conditions generally send tephra and volcanic gas southwest over the remote Ka‘u Desert. Eruption viewing areas within the national park are unaffected, but there can be decreased ...

Eruption viewing areas within the national park are unaffected, but there can be decreased air quality in communities ...

For 67 years, the observatory on Hawaii's Mauna Loa volcano has been taking these measurements daily  — tracking the invisible gas that is building up in our atmosphere and changing life on Earth.

The Mauna Loa Volcano is seen from the air near Kailua-Kona, Hawaii, on Dec. 12, 2022. ROBYN BECK/AFP via Getty Images ...

FILE - 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. U.S. scientists declared ...