Climate models with increased levels of carbon dioxide predict that global warming causes
heating in the tropics, but investigations of ancient climates based on palaeodata have …

Abstract About 850,000 years ago, the period of the glacial cycles changed from 41,000 to
100,000 years. This mid-Pleistocene climate transition has been attributed to global cooling …

The middle of the Cretaceous period (about 120 to 80 Myr ago) was a time of unusually
warm polar temperatures, repeated reef-drowning in the tropics and a series of oceanic …

Ocean–atmosphere interactions in the tropical Pacific region have a strong influence on
global heat and water vapour transport and thus constitute an important component of the …

Atmospheric carbon dioxide concentrations seem to have been several times modern levels
during much of the Palaeozoic era (543–248 million years ago), but decreased during the …

The CLIMAP project's reconstruction of past sea surface temperature inferred limited ice-age
cooling in the tropical oceans. This conclusion has been controversial, however, because of …

In the present-day climate, surface water salinities are low in the western tropical Pacific
Ocean and increase towards the eastern part of the basin. The salinity of surface waters in …

For many high-latitude regions of the globe, it is now clear that the transition to modern
climate following the Last Glacial Maximum was punctuated by a number of rapid and …

The Cretaceous period is generally considered to have been a time of warm climate,,,,,.
Evidence for cooler episodes exists, particularly in the early Cretaceous period,,, but the …

Oxygen isotopic studies both of benthic formanifera1–5 and shallow-marine carbonates6–8
have provided a useful monitor of marine palaeotemperatures. The Deep Sea Drilling …