Each year, the TED (Technology, Entertainment, Design) conference hosts some of the world's most fascinating people: Trusted voices and convention-breaking mavericks, icons and geniuses. These podcasts (also available in audio format) capture the most extraordinary presentations delivered from the TED stage.
What happens to the clothes we don't buy? You might think that last season's coats, trousers and turtlenecks end up being put to use, but most of it (nearly 13 million tons each year in the United States alone) ends up in landfills.
What is it about unfairness? Whether it's not being invited to a friend's wedding or getting penalized for bad luck or an honest mistake, unfairness often makes us so upset that we can't think straight.
How deep into the Earth can we go and still find life? Marine microbiologist Karen Lloyd introduces us to deep-subsurface microbes: tiny organisms that live buried meters deep in ocean mud and have been on Earth since way before animals.