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Reconstruction of the past 5 million years of climate history, based on oxygen isotope fractionation in deep sea sediment cores (serving as a proxy for the total global mass of glacial ice sheets), fitted to a model of orbital forcing (Lisiecki and Raymo 2005) [2] and to the temperature scale derived from Vostok ice cores following Petit et al. (1999).
Reconstruction of the past 5 million years of climate history, based on oxygen isotope fractionation in deep sea sediment cores (serving as a proxy for the total global mass of glacial ice sheets), fitted to a model of orbital forcing (Lisiecki and Raymo 2005) [100] and to the temperature scale derived from Vostok ice cores following Petit et ...
Global temperature estimates over the ~12,000 years of the Holocene from the multi-proxy collection and interpretation of Marcott et al (2013). [ 12 ] Instrumental (not proxy) data since 1850 from the Berkeley Earth project land-ocean dataset (2014), [ 13 ] plotted as decadal means.
500 million years of climate change Ice core data for the past 400,000 years, with the present at right. Note length of glacial cycles averages ~100,000 years. Blue curve is temperature, green curve is CO 2, and red curve is windblown glacial dust (loess). Scale: Millions of years before present, earlier dates approximate.
High global temperatures contributed to diversification of terrestrial species during the Cretaceous Terrestrial Revolution and also led to warm stratified oceans during the Oceanic Anoxic Event 2 (OAE-2). [12] Depiction of average planetary temperature of Earth over the past 500 million years.
The planet’s 10 hottest years since 1850 have all occurred in the past decade, according to NOAA. ... full year in which global temperatures exceeded 1.5 degrees C above preindustrial times ...
Ice core data for the past 800,000 years (x-axis values represent "age before 1950", so today's date is on the left side of the graph and older time on the right). Blue curve is temperature, [ 36 ] red curve is atmospheric CO 2 concentrations, [ 37 ] and brown curve is dust fluxes.
Top chart: Earth's climate has cycled between ice ages and warm interglacial periods, with each cycle taking tens of thousands of years or more. Middle chart: Global average temperature was in a cooling trend for thousands of years before fossil fuel based industrialization. Since then, it has increased about a full 1°C—in a time period less ...