Exaggeration of global warming

Exaggeration of global warming occurs when scientists ignore data that indicates less warming, specifically in the period since the earth's atmosphere reached a low point in 1860 (see Little Ice Age).

http://blogs.telegraph.co.uk/news/jamesdelingpole/100020126/climategate-goes-serial-now-the-russians-confirm-that-uk-climate-scientists-manipulated-data-to-exaggerate-global-warming/