Roger Kemp is professor of engineering at Lancaster University and advises the UK Department for Transport on energy use in transport (see: http://www.timesonline.co.uk/tol/news/uk/article1909827.ece).
Professor Roger Kemp in his submission to the Institute of Engineering and Technology’s climate change committee (warning that Britain produced 200m tonnes of CO2 a year in transport emissions and on current trends that will double by 2045 – whereas the government has pledged to reduce transport emissions to around 90m tonnes by that date) (2007): “We would need to plant a land area twice the size of Britain to get enough biofuel crops to halve our emissions. The numbers simply do not add up” [1].
[1]. Professor Roger Kemp, quoted in Jonathan Leake and Steven Swinford , “Top scientist says biofuels are scam”, Times Online, 10 June 2007: http://www.timesonline.co.uk/tol/news/uk/article1909827.ece .