Is it human activity of the sun that is causing global warming? Is Vitamin D good for you? A new study says that Vitamin D has tremendous power over pancreatic cancer. Dr. Michael Shermer, who runs a column in Scientific America and author of "Why Darwin Matters," on the theory of evolution.
Support KPFA Today
Founded in 1949 by Lewis Hill, a pacifist, poet, and journalist, KPFA was the first community supported radio station in the USA. Keep us going another 50 years!Secure Online Donations