NASA says "Here comes the heat!"

Largely due to human produced greenhouse gas emissions, but also because of a predicted weak El Nino, 2005 is expected to be the warmest year ever to be recorded. While warm water is expected to traverse it's way through the majority of the Pacific Ocean, the atmosphere, due to human made pollutants, will be much the same. Other years where numbers were this high, as in 1963, 1982 and 1991 were due to large volcanic eruptions that launched tiny particles of sulfuric acid into the upper atmosphere. High temperatures during these years only made sense because of natural causes. Now, for 2005, temperature levels will surpass previous years with very little, to no help from friendly volcanoes. Average temperatures taken from land and surfaces of the oceans showed 2004 was 0.86 degrees Fahrenheit (0.48 Celsius) above the average temperature from 1951 to 1980, according to Hansen, a NASA scientist. Based upon these current numbers and predicted weather patterns, 2005 will be drenched in sweat.
http://www.cnn.com/2005/TECH/science/02/11/warming.planet.nasa.reut/index.html