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 ...

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. By Rebecca Dzombak More than 11,100 feet above ...

Keeling measured greenhouse gases from near the peak of 13,678-foot (4,169 meter) Mauna Loa, Hawaii, because it is far from localized interference by our CO2-spewing civilization.

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.

Over nearly seven decades, research conducted at Hawaii’s Mauna Loa Observatory taught us that global warming is happening and humans are causing most of it. Trump's proposed budget for 2026 would ...

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.