As the oldest and largest island, the Island of Hawaii is dominated by the pair of volcanoes that created the island. At the ...

The Keeling Curve, measured there, is irrefutable evidence of increasing CO2 emissions Column When you don't like the message ...

Fast forward to 2025, and there have been only three eruptions of Mauna Loa in the past 75 years since 1950: 1975, 1984, and ...

Former federal officials and outside experts have warned for months that President Donald Trump’s deep staffing cuts to the ...

Mauna Loa has now been collecting data for more than 65 years. The resulting Keeling curve graph is the most iconic demonstration of how human activities are collectively affecting the planet.

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