Observed Arctic sea-ice loss directly follows anthropogenic CO 2 emission

Author:

Notz Dirk1,Stroeve Julienne23

Affiliation:

1. Max Planck Institute for Meteorology, Hamburg, Germany.

2. National Snow and Ice Data Center, Boulder, CO, USA.

3. University College, London, UK.

Abstract

Why we are losing sea ice Arctic sea ice is disappearing rapidly, leading to predictions of an ice-free summer in the near future. Simulations of the timing of summer sea-ice loss differ substantially, making it difficult to evaluate the pace of the loss. Notz and Stroeve observed a linear relationship between the monthly-mean September sea-ice area and cumulative CO 2 emissions. This allowed them to predict Arctic summer sea ice directly from the observational record. Interestingly, most models underestimate this loss. Science , this issue p. 747

Funder

NASA

NSF

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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