BBC Horizon: Should We Close Our Zoos

Weekly current affairs show

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

John Maynard Keynes, Friedrich Hayek, and Karl Marx. Although many people don't know who they are, their theories have influenced decisions at the highest level. Narrated by BBC economics editor Stephanie Flanders, this documentary explores their lives, their thinking, and how each has shaped the global economy and touched our everyday lives. From the producers of The Story of Math and The Code.

Broadly considered a brand that inspires fervour and defines cool consumerism, Apple has become one of the biggest corporations in the world, fuelled by game-changing products that tap into modern desires. Its leader, Steve Jobs, was a long-haired college dropout with infinite ambition, and an inspirational perfectionist with a bully's temper. A man of contradictions, he fused a Californian counterculture attitude and a mastery of the art of hype with explosive advances in computer technology. Insiders including Apple co-founder Steve Wozniak, the chairman who ousted Jobs from the company he founded, and Jobs' chief of software, tell extraordinary stories of the rise, fall and rise again of Apple with Steve Jobs at its helm. With Stephen Fry, world wide web inventor Sir Tim Berners-Lee and branding guru Rita Clifton, Evan Davis decodes the formula that took Apple from suburban garage to global supremacy.

A look at three key numbers that clarify the important questions on climate change, giving a unique perspective on what we know about the past, present and future of our climate.