Recent Climate Observations Compared to Projections

  title={Recent Climate Observations Compared to Projections},
  author={Stefan Rahmstorf and Anny Cazenave and John Alexander Church and James E. Hansen and Ralph F. Keeling and David E. Parker and Richard C. J. Somerville},
  pages={709 - 709}
We present recent observed climate trends for carbon dioxide concentration, global mean air temperature, and global sea level, and we compare these trends to previous model projections as summarized in the 2001 assessment report of the Intergovernmental Panel on Climate Change (IPCC). The IPCC scenarios and projections start in the year 1990, which is also the base year of the Kyoto protocol, in which almost all industrialized nations accepted a binding commitment to reduce their greenhouse gas… 

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