Enlightenment talks to Doctor Andy Russell and Daniel Sperling about climate change.

In this week's "Enlightenment" podcast, the 21st Floor looks at the link between magic and scepticism. What drives magicians to debunk?

This week we look at the exciting and fascinating world of "terrible lizards" and the science behind investigating these now extinct marvels of the animal world. Exploring some common dinosaur myths and everything you ever wanted to know about those gargantuan dinosaurs: the Sauropods. Feat palentologists David Hone and Mike Taylor.

Making their way to the 21st Floor this week are Nick Pope, a former MOD UFO investigator, and Prof Chris French, a researcher in anomalistic psychology, to join us in a discussion of mysterious objects in our skies.

The 21st Floor travels to the otherside to look at tales of ghosts and ghouls in Edinburgh, "Europe's most haunted city", and examines the kinds of weird science that try to explain the stories.

Our Enlightenment election special: covering the campaigns that aim to make election issues out of science and skepticism.

The 21st Floor travels to the other side of the scale spectrum to explore the fundamental substance of reality itself.

The 21st Floor chats to some of the scientists at this years Royal Astronomical Society National Astronomy Meeting.

Keir Liddle from The 21st Floor chats to Martin Robbins, founder of The Lay Scientist and scourge of mountebanks, bullshitters and quacks everywhere.