According to a statement issued in mid-June 2011 by the British National Farmers' Union, wheat harvests in England are expected to drop 15% this year as a result of drought conditions,with farmers seeing the lowest yields since the 1980s.

http://www.independent.ie/farming/news-features/drought-hits-english-wheat-2801038.html

The Union of Concerned Scientists (UCS) launches the interactive Climate Hot Map as of June 21, 2011, available at climatehotmap.org, designed as a resource to illustrate the impacts of global warming in the hope of motivating people toward action before it is too late.

http://www.climatehotmap.org/about/climate-hot-map.html
http://www.ucsusa.org/news/press_release/new-map-tracks-impact-of-climate-change-5321.html