Mauna Loa is currently quiet and now is a good opportunity to remember the 1950 Southwest Rift Zone eruption — the volcano’s most recent eruption to have caused significant damage — 75 years ...

Closing Mauna Loa and three other U.S. sites that track greenhouse gases would disrupt a decades-long record of the planet’s changing atmosphere.

Data collected by Mauna Loa from 1958 onwards let us clearly see the evidence of climate change for the first time. The station samples the air and measures global CO₂ levels.

The Mauna Loa laboratory in Hawaii has measured atmospheric carbon dioxide, which — along with other planet-warming pollution — has led directly to climate change, driving sea level rise ...

An observatory high on Hawaii's Mauna Loa volcano that measures carbon dioxide in the atmosphere has reported its highest ever seasonal peak concentration of the greenhouse gas. For the first time ...

For the first time, the seasonal peak of carbon dioxide concentrations in the atmosphere exceeded 430 parts per million (ppm) at NOAA’s Mauna Loa Observatory on Hawaii, scientists from NOAA and ...

For the first time, the seasonal peak of carbon dioxide concentrations in the atmosphere exceeded 430 parts per million (ppm) at NOAA's Mauna Loa Observatory on Hawaii, scientists from NOAA and ...

Mauna Loa Macadamia Nut Company has recalled bags of its Dark Chocolate Covered Macadamia nuts because they may also contain undeclared almonds and cashews.