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Arctic Environmental Change of the Last Four Centuries

1997/11/14 by Jonathan T. Overpeck, Konrad A Hughen, Douglas R. Hardy +15 · 16 citations
Earth and Planetary Sciences · #Geology and Paleoclimatology Research #Climate change and permafrost #Tree-ring climate responses #Glacier #Permafrost #Arctic #Arctic ecology #Paleoclimatology #Climate change #Physical geography #Oceanography #Volcano #Global warming #The arctic #Glacial period #Cryosphere #Environmental science #Arctic sea ice decline #Arctic geoengineering #Environmental change #Climatology #Geology #Sea ice #Arctic ice pack #Geography #Antarctic sea ice #Paleontology

paper · doi:10.1126/science.278.5341.1251

openalex publication_date 1997/11/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

A compilation of paleoclimate records from lake sediments, trees, glaciers, and marine sediments provides a view of circum-Arctic environmental variability over the last 400 years. From 1840 to the mid-20th century, the Arctic warmed to the highest temperatures in four centuries. This warming ended the Little Ice Age in the Arctic and has caused retreats of glaciers, melting of permafrost and sea ice, and alteration of terrestrial and lake ecosystems. Although warming, particularly after 1920, was likely caused by increases in atmospheric trace gases, the initiation of the warming in the mid-19th century suggests that increased solar irradiance, decreased volcanic activity, and feedbacks internal to the climate system played roles.

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