Posted: Oct 05, 2010 3:39 am
by HughMcB
Climate Change Target 'Not Safe', Researchers Say

ScienceDaily (Oct. 3, 2010) — An analysis of geological records that preserve details of the last known period of global warming has revealed 'startling' results which suggest current targets for limiting climate change are unsafe.

The study by climate change experts at the University of Exeter has important implications for international negotiators aiming to agree binding targets for future greenhouse gas emission targets.

Professor Chris Turney and Dr Richard Jones, both from the University's Department of Geography, have reported a comprehensive study of the Last Interglacial, a period of warming some 125,000 years ago, in the latest issue of the Journal of Quaternary Science.

The results reveal the European Union target of limiting global temperature rise to less than 2°C above pre-industrial levels shouldn't be considered 'safe'.

From their analysis, the scientists found 263 estimates of the conditions when sediments and ice were laid down during the Last Interglacial, allowing them to reconstruct past temperatures around the globe. To compare the reconstructed estimates with today, they took the Last Interglacial values away from modern temperatures averaged over the period 1961 to 1990.

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