Middle Ages were warmer than today, say scientists
Claims that man-made pollution is causing "unprecedented" global warming have been seriously undermined by new research which shows that the Earth was warmer during the Middle Ages.
http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2003/04/06/nclim06.xml&sSheet=/news/2003/04/06/ixhome.html