Growing seaweed is now a ten billion dollar a year global industry. Tim travels to Korea to see some of the biggest seaweed farms in the world and meets the scientists who are hoping to create a seaweed revolution in Australia.
Off Australia's northeast coast lies a wonder of the world, a living structure so big it can be seen from space, more intricate and complex than any city, and so diverse it hosts a third of all fish species in Australia. The Great Barrier Reef as we know it -- 8,000 years old and home to thousands of marine species -- is dying in our lifetime.
2017 • Environment
A group of world-renowned scientists are on a quest to uncover the secrets of the most significant day in our planet's history: the day that killed the dinosaurs. 66 million years ago an asteroid the size of London hit the planet in the modern-day Gulf of Mexico. Now, as co-leaders of an expedition to drill deep into the Chicxulub asteroid impact crater, Geologists Sean Gulick and Jo Morgan have set out to answer how this resulted in the extinction of dinosaurs.
2017 • Nature
The robot revolution is here. It may seem like robots aren’t all that prevalent, but many people already have robot floor cleaners in their homes. Think Roomba. Most factories now leverage countless bots that never get tired or make mistakes. Soon, cars will be completely auto controlled. CGP Grey discusses the future of robots, and how jobs and the economy will change in this new video. What happens to the economy when most traditional jobs have been replaced by robots?
Professor Renata Salecl explores the paralysing anxiety and dissatisfaction surrounding limitless choice. Does the freedom to be the architects of our own lives actually hinder rather than help us? Does our preoccupation with choosing and consuming actually obstruct social change?
The Bomb tells the story of the most powerful and destructive device ever invented. Learn how humans harnessed this incredible power and what challenges we have faced living with it since 1945. With newly restored footage of nuclear weaponry, some of which has only recently been declassified, go behind the scenes of the first atomic bomb, revealing how it was developed and how it changed the planet, ushering in a new era and reshaping our lives even today. Rare footage from bomb tests through the 1950s and 60s demonstrates the power and strangely compelling beauty of nuclear explosions. Hear from foremost nuclear bomb historian Richard Rhodes, former Secretary of Defense William Perry, and former Secretary of State George Shultz, as well as from scientists, weapons designers, pilots, witnesses, and ordinary men and women who have lived and worked with the nuclear bomb. Examine the choices society has made--and continues to make--to live with an invention that could destroy the planet.
2015 • Economics