"A team at the University of California Berkeley that set out to test the temperature data underlying the consensus on global warming has concluded that the mainstream estimate of the rise in the earth’s surface temperature since 1950 is indeed accurate. It has warmed about 1 degree Centigrade (1.8 degrees Fahrenheit), the researchers say."
"Global Warming Is Happening, Berkeley Panel Says" (Think Progress Green)
"Skeptic Talking Point Melts Away as an Inconvenient Physicist Confirms Warming" (Dot Earth) 
Berkely Earth Surface Temperature