A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.
climate
Martian Glaciers May Have Carved Its Valleys
Networks of valleys provide puzzling hints of running water on the surface of the Red Planet. New research suggests that some tributaries could have formed from icy sheets thousands of meters thick.
A Spike in Wildfires Contributed to the End-Permian Extinction
An upward trend in fossilized charcoal indicates that wildfires may have contributed to extinctions during the Great Dying.
Machine Learning Emulation of Atmospheric Radiative Transfer
Using machine learning to represent sub-grid processes in weather and climate models holds promise, but also faces challenges. Incorporating physical knowledge can help.
Maui Endures More Drought and Drier Streams
Drought continues to threaten Maui’s native land-based and marine ecosystems, water resources, and traditional ways of life. But conservationists have hope—and ways to fight back.
Should Inhaled Anesthetics Be Swapped for IVs?
Using intravenous anesthetics instead of volatile ones could help curb greenhouse gas emissions, but there are challenges to making the switch.
Using Sap Flow to Infer Plant Hydraulic Properties
The internal hydraulic properties of plants are difficult to measure but may be inferred from observable sap flow.
Missouri River Floodplain Expansion, Services, and Resiliency
Benefits might accrue for both wildlife and climate resiliency if more floodplains along the lower Missouri River were allowed to flood.
Stretching Crust Explains Earth’s 170,000-Year-Long Heat Wave
During a brief period in Earth’s past, a massive emission of carbon abruptly raised global temperatures, acidified oceans, and stamped out species. New data may help explain how it happened.
Impact of Climate on River Chemistry Across the United States
Findings of a new study have implications for water quality, aquatic ecosystem health, and water treatment and management as the world warms.
