BBC Earth HD

Tony Robinson looks under the bonnet of some innovative machines leading the green revolution, from a Welsh hydrogen-powered car to a solar plane used to train the next generation of pilots.

From ice-covered seas to snow-capped mountains, mammals have conquered the cold, living in the harshest places on earth, thanks to their remarkable intelligence and adaptations.

Ben heads to Africa to meet a master bushman who quit a city career for the dry and dusty desert.

Sue goes ptarmigan hunting. Andy and Denise battle jumble ice. Jessie races in the Iditarod.

A look at the extension of the Panama Canal to accommodate the world's largest ships, which drew inspiration from the work of 17th-century engineer Hugues Cosnier.

The invention of railways coincided with the period of European colonisation. A look at how the Europeans used railways to further their imperial ambitions in other parts of the world.

Tony Robinson looks under the bonnet of some innovative machines leading the green revolution, from a Welsh hydrogen-powered car to a solar plane used to train the next generation of pilots.

Constructing the Gotthard Base Tunnel in Switzerland, the longest rail tunnel in the world, running for 57 kilometres through the Alps.

As winter comes to an end, Alaskans journey, hunt, and prepare for spring.

Ben heads to Slab City in the Californian desert to explore an alternative community.

The invention of railways coincided with the period of European colonisation. A look at how the Europeans used railways to further their imperial ambitions in other parts of the world.

Ben heads to Africa to meet a master bushman who quit a city career for the dry and dusty desert.

Sue goes ptarmigan hunting. Andy and Denise battle jumble ice. Jessie races in the Iditarod.

In this third episode, Simon focuses on some of the incredible wildlife stories he's encountered.

In the final episode, Simon looks at his journeys through some of the world's most spectacular and unspoilt wildernesses, and reflects on the huge challenges faced when trying to protect them.

A war in the 1970s left Cyprus split in two and displaced a third of its population. Ben spends a week with the UN's Peacekeeping Force, who patrol the buffer zone.

When spring finally arrives in Alaska, the landscape and waterways come back to life with a vengeance as the snow and ice melt.

Simon Reeve battles his way across the Congo, braving thick jungle and tropical swamps in search of the people and the wildlife who make their home in Africa's greatest rainforest.

Gregg Wallace visits the Lush factory in Dorset to learn how an astonishing 14 million bath bombs are produced every year. Plus, Cherry Healey learns how taking a hot bath can provide benefits.

The Arctic Vets team do whatever it takes to save the lives of sick animals.

The Arctic Vets team do whatever it takes to save the lives of sick animals.

Michael has travelled through two centuries of history aboard some of the world's most spectacular railways. Michael shares his thoughts on the role of railways in war.

A look at the extension of the Panama Canal to accommodate the world's largest ships, which drew inspiration from the work of 17th-century engineer Hugues Cosnier.

Gregg Wallace explores the Axminster factory in Devon to reveal how 46,000 square metres of carpet are produced every year. He follows the production of one of their best sellers, the Havana Diamond Steel wool carpet.

In the final weeks of the pioneering Flinders sleep trial, Dr Michael Mosley's lifelong insomnia starts to shift and the sleep campaign gathers in momentum in Canberra.

Ben Fogle is in Alaska battling mosquitoes and eating bear.

Sue transports a new generator. Andy and Denise gather wood. Ricko and his kids hunt for muskrat. Chip and Agnes move camp.

Explaining how the world's biggest ship, designed to install oil platforms and lay pipelines, was inspired by a logging machine, a wire rope and 1940s shipbuilding techniques.

Michael has travelled through two centuries of history aboard some of the world's most spectacular railways. Michael shares his thoughts on the role of railways in war.

Gregg Wallace explores the Axminster factory in Devon to reveal how 46,000 square metres of carpet are produced every year. He follows the production of one of their best sellers, the Havana Diamond Steel wool carpet.

In the final weeks of the pioneering Flinders sleep trial, Dr Michael Mosley's lifelong insomnia starts to shift and the sleep campaign gathers in momentum in Canberra.

Ben Fogle is in Alaska battling mosquitoes and eating bear.

Sue transports a new generator. Andy and Denise gather wood. Ricko and his kids hunt for muskrat. Chip and Agnes move camp.

Explaining how the world's biggest ship, designed to install oil platforms and lay pipelines, was inspired by a logging machine, a wire rope and 1940s shipbuilding techniques.

When spring finally arrives in Alaska, the landscape and waterways come back to life with a vengeance as the snow and ice melt.

Ben Fogle is in Alaska battling mosquitoes and eating bear.

A look at the extension of the Panama Canal to accommodate the world's largest ships, which drew inspiration from the work of 17th-century engineer Hugues Cosnier.

When spring finally arrives in Alaska, the landscape and waterways come back to life with a vengeance as the snow and ice melt.

A war in the 1970s left Cyprus split in two and displaced a third of its population. Ben spends a week with the UN's Peacekeeping Force, who patrol the buffer zone.

Michael has travelled through two centuries of history aboard some of the world's most spectacular railways. Michael shares his thoughts on the role of railways in war.

Gregg Wallace explores the Axminster factory in Devon to reveal how 46,000 square metres of carpet are produced every year. He follows the production of one of their best sellers, the Havana Diamond Steel wool carpet.

Ben Fogle is in Alaska battling mosquitoes and eating bear.

Sue goes ptarmigan hunting. Andy and Denise battle jumble ice. Jessie races in the Iditarod.

Sue transports a new generator. Andy and Denise gather wood. Ricko and his kids hunt for muskrat. Chip and Agnes move camp.

Ben explores Scotland's abandoned islands, inhabited 1,000 years ago and owned by the same family for generations.

Alaskans contend with the throes of the warm season.

Simon Reeve treks across the high mountains and treacherous ice fields of Patagonia, coming face to face with pumas and riding with gauchos.

Ben travels to Thailand to meet Paul and Sao, who he first visited in Cambodia. Paul and his family have build their version of an English castle.

The Arctic Vets team do whatever it takes to save the lives of sick animals.

The Arctic Vets team do whatever it takes to save the lives of sick animals.

Michael goes back to the cradle of the railways, Rainhill, a town in England, where a competition was held to discover the most improved locomotive engine for the railway.

Explaining how the world's biggest ship, designed to install oil platforms and lay pipelines, was inspired by a logging machine, a wire rope and 1940s shipbuilding techniques.

Ben travels to northern Norway inside the artic circle to catch up with Randi after five years. Randi has expanded her small holding and is now a crucial member of the local community.

Becky and family establish a 'Fish Camp' on the shores of Great Slave Lake.

Ben Fogle meets two brothers who live in the wilds of Utah.

Sue hunts waterfowl. Andy and Denise fight the river breakup. Ricko and his kids hunt geese. The Hailstones hunt small game.

The largest and most sophisticated radio telescope on the planet was based on geodesic dome designs and the work of 18th-century engineer Jean Marie Jacquard.

Michael goes back to the cradle of the railways, Rainhill, a town in England, where a competition was held to discover the most improved locomotive engine for the railway.

Ben travels to northern Norway inside the artic circle to catch up with Randi after five years. Randi has expanded her small holding and is now a crucial member of the local community.

Becky and family establish a 'Fish Camp' on the shores of Great Slave Lake.

Ben Fogle meets two brothers who live in the wilds of Utah.

Sue hunts waterfowl. Andy and Denise fight the river breakup. Ricko and his kids hunt geese. The Hailstones hunt small game.

The largest and most sophisticated radio telescope on the planet was based on geodesic dome designs and the work of 18th-century engineer Jean Marie Jacquard.

Michael goes back to the cradle of the railways, Rainhill, a town in England, where a competition was held to discover the most improved locomotive engine for the railway.

In the final weeks of the pioneering Flinders sleep trial, Dr Michael Mosley's lifelong insomnia starts to shift and the sleep campaign gathers in momentum in Canberra.

Explaining how the world's biggest ship, designed to install oil platforms and lay pipelines, was inspired by a logging machine, a wire rope and 1940s shipbuilding techniques.

Alaskans contend with the throes of the warm season.

Ben explores Scotland's abandoned islands, inhabited 1,000 years ago and owned by the same family for generations.

Michael goes back to the cradle of the railways, Rainhill, a town in England, where a competition was held to discover the most improved locomotive engine for the railway.

Ben travels to northern Norway inside the artic circle to catch up with Randi after five years. Randi has expanded her small holding and is now a crucial member of the local community.

Ben Fogle meets two brothers who live in the wilds of Utah.

Sue hunts waterfowl. Andy and Denise fight the river breakup. Ricko and his kids hunt geese. The Hailstones hunt small game.

Simon Reeve treks across the high mountains and treacherous ice fields of Patagonia, coming face to face with pumas and riding with gauchos.

Ben returns to a remote Australian island to find out how former businessman David Glasheen is getting on. For more than twenty years David enjoyed a life of peace but must survive by growing his own vegetables.

Alaskans harness the power of the sun as they toil through summer.

Simon Reeve voyages across the Coral Triangle, a remote wilderness of tropical reefs and jungle-clad islands described as the Amazon of the seas.

Entering The Balkans by sleeper train, Alice Roberts is in Bulgaria's capital Sofia. She'll learn how the empire was controlled from Istanbul and how today the landscape today is almost entirely Soviet.

The Arctic Vets team do whatever it takes to save the lives of sick animals.

Dr. Chris must deal with reindeer bullies to keep harmony in the herd, and with ice finally forming on Hudson Bay as polar bear season wraps up, the Alert team releases eight bears back into the wild.

Michael examines notorious crimes on the railways during the times of his Bradshaw's and Appleton's guides. He looks into the history of skulduggery by the owners of North American railroad companies.

The largest and most sophisticated radio telescope on the planet was based on geodesic dome designs and the work of 18th-century engineer Jean Marie Jacquard.

In her final chapter, Alice Roberts takes a train to the western point of the Ottoman Empire, Budapest to learn how it ended.

Part 2. Professor Brian Cox continues his journey behind the scenes at Nasa's Jet Propulsion Laboratory (JPL), mission control for Mars 2020.

Ben Fogle meets a Brit who now lives in the Arctic Circle.

Sue expands her garden. Andy and Denise hunt waterfowl. Ricko teaches his kids to hunt. The Hailstones go on an egg hunt.

This episode looks at the creation of London's Crossrail network, revealing how taxidermy inspired an engineering breakthrough.

Michael examines notorious crimes on the railways during the times of his Bradshaw's and Appleton's guides. He looks into the history of skulduggery by the owners of North American railroad companies.