Changes

[http://en.wikipedia.org/wiki/Paleoclimatology Paleoclimatology] is the [[study]] of ancient climates. Since direct [[observations]] of climate are not available before the 19th century, paleoclimates are inferred from proxy variables that include non-biotic [[evidence]] such as sediments found in [[lake]] beds and ice cores, and biotic [[evidence]] such as tree rings and coral. [http://en.wikipedia.org/wiki/Climate_model Climate models] are [[mathematical model]]s of [[past]], [[present]] and [[future]] climates.[http://en.wikipedia.org/wiki/Climate]

[http://en.wikipedia.org/wiki/Paleoclimatology Paleoclimatology] is the [[study]] of ancient climates. Since direct [[observations]] of climate are not available before the 19th century, paleoclimates are inferred from proxy variables that include non-biotic [[evidence]] such as sediments found in [[lake]] beds and ice cores, and biotic [[evidence]] such as tree rings and coral. [http://en.wikipedia.org/wiki/Climate_model Climate models] are [[mathematical model]]s of [[past]], [[present]] and [[future]] climates.[http://en.wikipedia.org/wiki/Climate]

[[Category: Earth Science]]

[[Category: Earth Science]]

[[Category: Ecology]]

[[Category: Ecology]]