There has been a net warming of the earth over the last century and a half, and our greenhouse gas emissions are contributing at some level. (climatesciencewatch.org)
All models agree that the net effect will be a general and global warming of the earth; they only disagree about how much. (dotearth.blogs.nytimes.com)
Most predicted a hefty warming of the earth's average surface temperature to have taken place, while there was no significant change in the real world. (cato.org)