While there is a strong statistical link between rising temperatures and greenhouse gas emissions, skeptics of global warming claim the anthropogenic, or human-caused climate change, effects are overestimated. Pablo Verdes, however, conducted data analysis looking at the driving force of a non-linear time series of the past 150 years. Click the link to read up on the astounding coincidence:

http://physicsworld.com/cws/article/news/2007/aug/02/new-statistical-analysis-confirms-human-role-in-climate-chan