Causes of climate change over the past 1000 years

@article{Crowley2000CausesOC,
  title={Causes of climate change over the past 1000 years},
  author={Crowley},
  journal={Science},
  year={2000},
  volume={289 5477},
  pages={
          270-7
        }
}
  • Crowley
  • Published 14 July 2000
  • Environmental Science, Medicine
  • Science
Recent reconstructions of Northern Hemisphere temperatures and climate forcing over the past 1000 years allow the warming of the 20th century to be placed within a historical context and various mechanisms of climate change to be tested. Comparisons of observations with simulations from an energy balance climate model indicate that as much as 41 to 64% of preanthropogenic (pre-1850) decadal-scale temperature variations was due to changes in solar irradiance and volcanism. Removal of the forced… Expand

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