Paleoclimatology
Paleoclimatology Earth's history, a reconstruction of ancient climate is important to understand natural variation as alive as the evolution of a current climate.
Paleoclimatology uses a types of microfossils. Combined with techniques to date the proxies, the paleoclimate records are used to instituting the past states of Earth's atmosphere.
The scientific field of paleoclimatology came to maturity in the 20th century. Notable periods studied by paleoclimatologists are the frequent glaciations that Earth has undergone, rapid cooling events like the Younger Dryas, together with the rapid warming during the Paleocene–Eocene Thermal Maximum. Studies of past clear adjustments to in the environment together with biodiversity often reflect on the current situation, specifically the impact of climate on mass extinctions and biotic recovery and current global warming.