Tom Watt-Smith

Chris Hemsworth takes on epic challenges to reveal ways we can all live better today.

Over 7,000 incredible islands, bursting with unique natural wonders. Liz Bonnin shares the sights that ignited her passion for nature and discovers the Caribbean's untamed heart.

Rising sea levels and sinking land threaten to destroy Venice. Leading scientists and engineers battling the forces of nature to try to save this historic city for future generations. Discover the innovative projects and feats of engineering currently underway, including a hi-tech flood barrier, eco-projects to conserve the lagoon, and new efforts to investigate erosion beneath the city.

From colossal farms in America to the destruction of the Amazon, is our hunger for meat killing our planet?

Liz Bonnin is setting out on a global mission to reveal the full scale of the world’s plastic problem – and explore ways in which this looming environmental disaster might be averted. As she chases plastic around the world, Liz is going to show us that this is a crisis far greater than we’d ever imagined…

Bearwalker tells the emotional life story of wildlife biologist Lynn Rogers, who has lived closer to wild black bears than anyone ever before. This film follows his daughter, Colleen, as she returns home to the iconic Northwoods of Minnesota to help her aging father save his remarkable legacy. Many in America have a paralysing fear of bears, yet, as a child, Colleen was raised among wild bears, never questioning her father’s unconventional bond with these animals. Now, a frail father and loving daughter face denial, heartache, and the looming threat of hunters while Lynn strives to see his favourite bear, ‘Lily,’ one last time. Set against the raw beauty of the American wilderness and brought to life with rare, unseen archive footage, Bearwalker charts the fifty-year journey of a controversial scientific pioneer, revealing how challenging and overcoming fear can create a new relationship with the wild.

In January 2022, one of the most powerful volcanic eruptions in recorded history rocked the Pacific islands of Tonga, sending shockwaves around the world. Through first-person accounts of the disaster and eyewitness footage, experience the terrifying power of the eruption and the devastating tsunami that struck the shores of Tonga. Why was this eruption so big, how did it cause the tsunami, and could another disaster loom? NOVA investigates on "Hidden Volcano Abyss."

The BBC teams up with some of Britain's top dentists to show how the latest science can change how we look after our teeth.