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Jonathan M. Gregory is a climate modeller working on mechanisms of global and large-scale change in climate and sea level on multidecadal and longer timescales. He is currently a senior scientist in the Climate Division of NERC's National Centre for Atmospheric Science (NCAS-Climate), located in the Department of Meteorology at the University of Reading, and a Met Office Science Fellow in [''delete: the climate-change group] climate change at the Hadley Centre.

A 2004 study, led by Gregory and published in the journal Nature, predicted that [delete: run-away melting of the Greenland ice sheet could start within 50 years] the Greenland ice sheet is likely to eliminated as a consequence of global warming, resulting in [delete: its total meltdown over the next 1000 years and] a rise in global sea-levels by 7 meters over the next 1000 years or more.

He was a co-ordinating Lead Author of the IPCC 2001 Third Assessment Report chapter 11 Changes in Sea Level, and a contributing author to the [delete: SAR chapter] sea level chapter in the IPCC Second Assessment Report. Gregory was also a [delete:  co-] Lead Author of the IPCC 2007 Fourth Assessment Report chapter 5 Observations: Oceanic Climate Change and Sea Level and chapter 10 Global Climate Projections . IPCC was a co-recipient (with Al Gore) of the 2007 Nobel Peace Prize for its work on climate change.

In 2010 Jonathan Gregory was awarded an Advanced [delete: Fellowship] Grant by the European Research Council to carry out research on sea level change. In addition to sea level change, Gregory has worked in recent years on climate sensitivity and predicted changes in the Atlantic meridional overturning circulation, among other subjects.

Selected publications

 * [delete: White, N. J ., J. A. Church, and J. M. Gregory, 2005. Coastal and global averaged sea level rise for 1950 to 2000 Geophys. Res. Lett., 32, pg(s). L01601.]
 * [delete: Connolley, W. M ., J. M. Gregory, E. Hunke, and A. J. McLaren, 2004. On the consistent scaling of terms in the sea ice dynamics equation J. Phys. Oceanogr., 34, 7, pg(s). 1776-1780.]
 * add: Gregory, J. M. and M. Webb, 2008: Tropospheric adjustment induces a cloud component in CO2 forcing J. Climate, 21, 58-71, DOI: 10.1175/2007JCLI1834.1.
 * add: Gregory, J. M., K. W. Dixon, R. J. Stouffer, A. J. Weaver, E. Driesschaert, M. Eby, T. Fichefet, H. Hasumi, A. Hu, J. H. Jungclaus, I. V. Kamenkovich, A. Levermann, M. Montoya, S. Murakami, S. Nawrath, A. Oka, A. P. Sokolov, R. B. Thorpe, 2005: A model intercomparison of changes in the Atlantic thermohaline circulation in response to increasing atmospheric CO2 concentration Geophys. Res. Lett., 32, L12703, DOI: 10.1029/2005GL023209.
 * Gregory, J. M ., H. T. Banks, P. A. Stott, J. A. Lowe, and M. D. Palmer, 2004. Simulated and observed decadal variability in ocean heat content Geophys. Res. Lett., 31, L15312
 * Gregory, J. M ., P. Huybrechts and S. C. B. Raper, 2004. Threatened loss of the Greenland ice-sheet, Nature, 428, 6983, pg(s). 616.
 * Gregory, J. M ., O. A. Saenko and A. J. Weaver, 2003. The role of the Atlantic freshwater balance in the hyteresis of the meridional overturning circulation Climate Dynamics, 21, 7-8, pg(s). 707-717.
 * Gregory, J. M ., R. J. Stouffer, S. C. B. Raper, P. A. Stott and N. A.Rayner, 2002. An observationally based estimate of the climate sensitivity. Journal of Climate, 15, 22, pg(s). 3117-3121.
 * Church, J. A . and J. M. Gregory, 2001. Sea level change In: Encyclopedia of Ocean Sciences. J. H. Steele and K. K. Turekian eds. Academic Press, London
 * Gregory, J. M ., J. A. Church, G. J. Boer, K. W. Dixon, G. M. Flato, D. R. Jackett, J. A. Lowe, S. P. O'Farrell, E. Roeckner, G. L. Russell, R. J. Stouffer and M. Winton, 2001. Comparison of results from several AOGCMs for global and regional sea-level change 1900-2100. Climate Dynamics, 18, 3-4, pg(s). 225-240.