Geoclimate: Probing the Earth's climate record at all temporal and spatial scales



Why study Earth's “deep-time” (loosely, “pre-Quaternary“) climate? Simply put, the climatic record must be studied at all spatial and temporal scales, in order to comprehend the full range of variability of Earth's climate system, and the physical, biological, and chemical processes that control this variability. The modern and recent record of climate variability is much better documented and understood than is the longer, deep-time record. Similarly whereas some of the more dramatic, larger changes in Earth's climate are reasonably well known from the longer-term geologic record, the higher-frequency record is less well documented and certainly not understood.