<p>The chemicals we rely on for practically everything are slowly threatening our health, happiness, and the future of our species. Dr. Shanna Swan walks us through the evidence.<br /><br /></p>

The Science of Smell: New Cars, Old People, and the Stink of the Moon

Bill Nye is on a mission to change the world — one voicemail at a time. Bill and science writer Corey S. Powell take your burning questions and put them to the world's leading experts on just about every topic in the universe. Should you stop eating cheeseburgers to combat climate change? Could alien life be swimming inside the moons of Jupiter and Saturn? Does your pet parakeet learn to sing the way that you learned to speak? Bill, Corey, and their special guests will answer those questions and convince you that... science rules!