Increased reflection of incoming sunlight by clouds led one current-generation climate model to predict unrealistically cold temperatures during the last ice age.
Bubbles of greenhouse gases trapped in ice shed new light on an important climate transition that occurred about a million years ago.
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.
None of the cold and warm epochs from the past 2,000 years were global events, but the current period of climate change is more intense and is happening simultaneously across the entire planet.
Researchers find that past studies underestimate the friction meltwater channels exert on glaciers by orders of magnitude.
Researchers used both terrestrial and marine proxy data to reconstruct the dramatic and dynamic climatic changes.
A new study shows that low-latitude weather can affect distant glaciers.
Carbon isotope data suggest an alternative source of nutrients to the Eastern Equatorial Pacific during glacial periods.
Weathering of rocks can control Earth’s temperature over geologic timescales, new geochemical data suggest.
Scientists test whether sparse, indirect data can reveal ancient ocean chemistry and circulation patterns.