A key site that monitors global carbon-dioxide emissions went offline for maintenance and will return later Wednesday, according to the National Oceanic and Atmospheric Administration.Most Read from B ...

The USGS Hawaiian Volcano Observatory spearheads Volcano Awareness Month each January on the Island of Hawaii. This year, in ...

There are two active volcanoes in Hawai'i Volcanoes National Park, Mauna Loa and Kilauea, but Kilauea is the real "must-see." A 4,000-foot-tall mountain, Kilauea has been active since Jan. 3 ...

A powerful storm system pummeled Hawaii Thursday with flash flooding, damaging wind gusts, severe thunderstorms and blizzard-like conditions on the high mountain peaks.

A powerful storm that will bring heavy rain, gusty winds and flash flooding is set to hit the Hawaiian Islands Wednesday ...

We’ve compiled a list of what we believe to be the top-10 UNESCO heritage sites up and down the 50 states, let’s see if you agree. Yosemite National Park is a true wonder of the world. Towering ...

In the northern Sierra Nevada, snow will fall in feet — not inches. And in the northern California Coastal Range, a general 5 to 10 inches of rain is expected to fall.

Lots of rain was left behind when the winter storm moved down the island chain last week, however, if you’re on the Big ...