Past ocean surface conditions suggest that over the past 800,000 years, atmospheric carbon dioxide levels typically rose on millennial timescales when Atlantic overturning was weaker and vice versa.
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Posted inNews
Did Bacterial Enzymes Cap the Oxygen in Early Earth’s Atmosphere?
A new theory suggests that nitrogenase from cyanobacteria could be the reason oxygen levels remained low after the Great Oxidation Event.
Posted inEditors' Highlights
Polar Stratosphere Resolves North Atlantic Jet “Tug of War”
Getting the polar stratosphere right is critical in the simulation of North Atlantic climate change, which is shaped by the interaction of Arctic Amplification and tropical upper tropospheric warming.
Posted inEditors' Vox
Atmospheric Model Hierarchies: Connecting Theory and Models
Model hierarchies are fundamental to how we model Earth’s climate, allowing us to apply our theoretical understanding, connect simple ideas to the real atmosphere, and test new hypotheses.
Posted inEditors' Highlights
Looking Away from the Sun: Improved Tracking of Solar Storms
A new tool for tracking coronal mass ejections away from the Sun opens a path toward more accurate warnings for operators who have to cope with adverse space weather.
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Water Found in Small, Habitable Zone Planet’s Atmosphere
K2-18b is warm, has an atmosphere, and has water vapor. But it’s no Earth 2.0.
Posted inEditors' Highlights
Molecular Ions Unexpectedly Frequent in Earth’s Magnetosphere
A Japanese satellite reveals rapid and surprisingly frequent transport of molecular ions from the ionosphere to the magnetosphere, under not only extreme but also moderate geomagnetic conditions.
Posted inEditors' Highlights
Hydrological Footprint of Atmospheric Rivers on Land
Atmospheric rivers that make landfall in the western United States have significant impacts on the surface water balance, sharpening the seasonality of water resources in coastal watersheds.
Posted inResearch Spotlights
Charging Thunderclouds Affect Ionospheric Conductivity
As thunderstorm updrafts strengthen, electrification of clouds can heat the lower ionosphere, explaining prolonged disturbances to radio waves in the rarefied atmospheric layer.
Posted inResearch Spotlights
A “Super” Solution for Modeling Clouds
Climate models struggle to accurately portray clouds because the models cannot resolve the scales at which clouds form. A new study demonstrates a potential fix for the problem.