It sounds weird, but snow in Hawaii isn't unusual at all. That's because the islands have mountains. It even occasionally ...

I visited all the major US national parks and ranked them based on factors like beauty and crowd size. My favorites include ...

In 1958, scientist Charles David Keeling began monitoring carbon dioxide levels at the Mauna Loa Observatory in Hawaii, providing the first clear evidence that humans were increasing atmospheric CO2 ...

Scientists fear an 'irreplaceable' loss of key climate data as Trump cost-cutting plans target a key CO2 monitoring site in ...

The episodic summit eruption of Kīlauea in Halemaʻumaʻu Crater has been going on for more than 3 months now, with 16 eruptive ...

A recent study on the ancient glaciers of Mauna Kea on Hawaii Island has revealed important insights about how past climate ...

Looming over Waikiki Beach on Oahu, Diamond Head is Hawaii’s most famous landmark. Hawaiians called it “Lēʻahi” because it ...

When magma moves into the rift zone of a Hawaiian volcano, there is understandably a lot of excitement and apprehension. How ...

Magma moves through Hawaiian rift zones as dikes, which are tabular sheets of magma that move laterally and vertically ...

Visitors come from around the world to marvel at its explosive displays. The largest of the state's six active volcanoes is Mauna Loa, which is also on the Big Island and had erupted in 2022.