Alex McFarland is a speaker, writer and advocate for Christian apologetics. He serves as director of the Center for Christian Worldview and Apologetics at North Greenville University, a leading Christian college in the United States. He has spoken in hundreds of locations throughout North America and internationally and has preached in more than 1,300 churches. Alex has been featured at some of the nation's biggest Christian events and conferences. Alex is the author of several books, including the best-selling 10 Most Common Objections to Christianity.

Nancy is an Associate Editor at The Stream. She is currently working toward her PhD in Strategic Communication and Journalism at Regent University. She’s married with four boys.

This week’s March for Science is odd. Marches are usually held to defend something that’s in peril. Does anyone really think big science is in danger? The mere fact that the March was scheduled for Earth Day betrays what the event is really about: politics. The organizers admitted as much early on, though they’re now busy trying to cover the event in sciencey camouflage.

If past is prologue, expect to hear a lot about the supposed “consensus” on catastrophic climate change this week. The purpose of this claim is to shut up skeptical non-scientists.

How should non-scientists respond when told about this consensus? We can’t all study climate science. But since politics often masquerades as science, we need a way to tell one from the other.

“Consensus,” according to Merriam-Webster, means both “general agreement” and “group solidarity in sentiment and belief.” That sums up the problem. Is this consensus based on solid evidence and sound logic, or social pressure and groupthink?