This week on Uncommon Knowledge, David Berlinski, a mathematician, philosopher, and biologist, discusses the current state of the scientific community, the theories of Darwinism, and the science behind global warming. Peter Robinson gets a sneak peek at his new book, The Best of Times, on the history and perplexities of the twentieth century. Berlinski is also author of The Devil’s Delusion, The Deniable Darwin, and The King of Infinite Space: Euclid and His Elements.