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- Polar_forests_of_the_Cretaceous abstract "Cretaceous polar forests were temperate forests that grew at polar latitudes during the final period of the Mesozoic Era, known as the Cretaceous Period 145–66 Ma. During this period, global average temperature was about 10 °C (18 °F) higher and carbon dioxide (CO2) levels were approximately 1000 parts per million (ppm), 2.5 times the current concentration in Earth's atmosphere. The abundance of atmospheric carbon dioxide had a very significant impact on global climate and Earth's natural systems as its concentration is considered one of the main factors in the development of a pronounced greenhouse Earth during the Cretaceous with a very low average global temperature gradient. As a consequence, high paleolatitudes in both hemispheres were much warmer than at present. This temperature gradient was partly responsible for the lack of continental ice sheets in polar regions.As a response to elevated global temperatures, the Earth's hydrologic cycle was significantly enhanced due to greater volume of moisture evaporation from the surface of the ocean. In turn, the absolute sea level during this time period stood at elevations much higher than the present level. Continental encroachment of seawater formed widespread shallow seas, including expanses of epeiric seas.An increase in surface area between shallow, warm epeiric seawater and the atmosphere permits higher evaporation rates and more precipitation at various latitudes, producing a more temperate global climate. A widespread temperate climate also had significant effects on high latitude ecosystems.".
- Polar_forests_of_the_Cretaceous thumbnail Blakey_90moll.jpg?width=300.
- Polar_forests_of_the_Cretaceous wikiPageExternalLink 295.
- Polar_forests_of_the_Cretaceous wikiPageID "37882012".
- Polar_forests_of_the_Cretaceous wikiPageRevisionID "591203680".
- Polar_forests_of_the_Cretaceous hasPhotoCollection Polar_forests_of_the_Cretaceous.
- Polar_forests_of_the_Cretaceous subject Category:Climate_history.
- Polar_forests_of_the_Cretaceous subject Category:Cretaceous_life.
- Polar_forests_of_the_Cretaceous subject Category:Geological_history_of_Earth.
- Polar_forests_of_the_Cretaceous comment "Cretaceous polar forests were temperate forests that grew at polar latitudes during the final period of the Mesozoic Era, known as the Cretaceous Period 145–66 Ma. During this period, global average temperature was about 10 °C (18 °F) higher and carbon dioxide (CO2) levels were approximately 1000 parts per million (ppm), 2.5 times the current concentration in Earth's atmosphere.".
- Polar_forests_of_the_Cretaceous label "Polar forests of the Cretaceous".
- Polar_forests_of_the_Cretaceous sameAs m.0p3j66x.
- Polar_forests_of_the_Cretaceous sameAs Q7209083.
- Polar_forests_of_the_Cretaceous sameAs Q7209083.
- Polar_forests_of_the_Cretaceous wasDerivedFrom Polar_forests_of_the_Cretaceous?oldid=591203680.
- Polar_forests_of_the_Cretaceous depiction Blakey_90moll.jpg.
- Polar_forests_of_the_Cretaceous isPrimaryTopicOf Polar_forests_of_the_Cretaceous.
