Arguments against the science of climate change by fossil fuel industry supporters at a recent conference illustrate their deep confusion.

The percentage of Republicans that believe humans evolved over time has dropped significantly in the past four years.

Clip: In this clip, astrophysicist Neil deGrasse Tyson says that the only thing that should be taught in science class is science.

In this 2004 Moyers Moment, author Richard Dawkins argues that evolution "is about as certain as anything we know."