Reframing the climate change challenge in light of post-2000 emission trends (2008) by Anderson, K. and A. Bows, Philosophical Transactions of the Royal Society, 366, pp. 3863-3882. The 2007 Bali conference heard repeated calls for reductions in global greenhouse gas emissions of 50 per cent by 2050 to avoid exceeding the 2 degree C threshold. While such endpoint targets dominate the policy agenda, they do not, in isolation, have a scientific basis and are likely to lead to dangerously misguided policies.

Climate change may not be good news for the Californian wine industry, according to a paper published in the open-access journal PNAS (Proceedings of the National Academy of Sciences of the United States of America). California is the UK's third largest source of wine after Australia (no 1) and France (no 2). An extract from the paper states: ‘…we estimate that potential premium winegrape production area in the conterminous United States could decline by up to 81% by the late 21st century.

Published in 2009 by the Centre for Rural Policy Research at Exeter University, this working paper by Hopkins A and Lobley M. A Scientific Review of the Impact of UK Ruminant Livestock on Greenhouse Gas Emissions, CRPR Research Report No. 27. Centre for Rural Policy Research, University of Exeter, UK.

A paper published in the Proceedings of the National Academy of Sciences identifies three steps that major greenhouse gas emitting countries should take so that global temperature rise does not exceed a rise of 2⁰C.

For an analysis of nitrogen flows through the UK economy see Nitrogen UK. The report notes: ‘Of the 3.4Mt reactive nitrogen that we either create or produce per annum, over 1Mt is returned to the environment without any benefit being realised from it.'