From 1998 to 2008, global warming was not present because Asians were spewing sulfur from coal-fired plants. http://www.reuters.com/article/2011/07/04/us-climate-sulphur-idUSTRE7634IQ20110704 So if it gets too hot out there, all we need to do is kick our coal power plants in high gear. But in Chicago, it hasn't been getting hot. We haven't gotten 3-digit temps in 6 years.
"A peak in temperatures in 1998 coincided with a strong El Nino weather event, a natural shift which brings warm waters to the surface of the Pacific Ocean every few years. Subsequent years have still included nine of the top 10 hottest years on record, while the U.N. World Meteorological Organization said 2010 was tied for the record." So there's been no warming since 1998, but since 1998 nine of the top 10 record hottest years have occurred?
Another case of the liberals and environmentalists trying to have it both ways. Coal burning causes global warming - Coal burning causes global cooling. They're such idiots.