An effective climate change solution may lie in rocks beneath our feet
Why has Earth’s climate remained so stable over geological time? The answer just might rock you.
Rocks, particularly the types created by volcanic activity, play a critical role in keeping Earth’s long-term climate stable and cycling carbon dioxide between land, oceans and the atmosphere.
Weathering of rocks like these basalt formations in Idaho triggers chemical processes that remove carbon dioxide from the air.
Matthew Dillon/Flickr, CC BY
Scientists have known for decades that rock weathering – the chemical breakdown of minerals in mountains and soils – removes carbon dioxide from the atmosphere and transforms it into stable minerals on the planet’s surface and in ocean sediments. But because this process operates over millions of years, it is too weak to offset modern global warming f...