Hawaii’s Mauna Loa Observatory just captured an ominous sign about the pace of global warming. Atmospheric levels of ...

Scientists fear an "irreplaceable" loss of key climate data as Trump's cost-cutting plans target a key CO2 monitoring site in Hawaii. Why is the Mauna Loa Observatory so important? https://p.dw ...

Lava could be seen shooting nearly 200 feet into the air and flowing down the side of Mauna Loa on Monday, but officials with the Hawaiian Volcano Observatory insist that nearby communities are ...

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 ...