Atmosphere

Researchers at Columbia University have identified the precise mechanism by which rising carbon dioxide levels cool the upper atmosphere. The finding accounts for decades of observed stratospheric cooling amid surface warming. Their study appears in the journal Nature Geoscience.

May 11, 2026 Iniulat ng AI

Scientists have found that the 2022 eruption of an underwater volcano in the South Pacific triggered a chemical process that removed significant amounts of methane from the atmosphere. The discovery, detailed in a new study, shows how volcanic ash and seawater combined to break down the potent greenhouse gas.