Science and scientists cannot always rise above the prejudices of their class and of their age. The selection and handling of evidence often reflects these prejudices. The most highly qualified and respected scientists can be blind to obvious deficiencies in a theory, and will be dismissive of evidence when it undermines what they want to believe.
But the scare over man made global warming may prove to be the first great example in the modern Western world, when science was betrayed by scientists themselves. ( Excerpt from greatglobalwarmingswindle.com ) Full Documentary 1 hour 13 minutes.