As the highest water bills ever land on doormats across the UK this April, this film investigates the future of the world's water, and paints a disturbing picture of a world running out of the most basic of life's essentials.

A journey through the parts of Afghanistan that don't normally feature in news coverage to meet some amazing people and see fascinating places. Lyse Doucet uses her many years experience in Afghanistan to show a different side of a country which has been at war for 30 years.

Beneath the America we think we know lies a nation hidden from view - a nomadic nation, living on the roads, the rails and in the wild open spaces. In its deserts, forests, mountain ranges and on the plains, a huge population of modern nomads pursues its version of the American dream.

Documentary series in which Andrew Marr finds out how some of the world's biggest cities feed, protect and move their citizens.

Safety and security are two of the biggest challenges faced by each and every metropolis. Whether earthquake, terrorism, flood or just crime, it\'s the geology, politics and social makeup of the megacities that make them some of the most profitable and dangerous places to live.

Andrew Marr looks at how people live in London, Dhaka, Tokyo, Mexico City and Shanghai.

Andrew finds out how megacities stay fed, and joins Mexico City\'s traffic cops in the air.

Time Shift reveals the history of the frozen continent, finding out why the most inhospitable place on the planet has exerted such a powerful hold on the imagination of explorers, scientists, writers and photographers.

David Attenborough explores just how far climate change is altering our planet, from drought-stricken rainforest to declining polar bears, from flooded homes to bleached coral. He searches for the evidence that it is our daily activities which are radically changing the climate, leaving the future of Earth largely up to us.

A unique journey around the weird and wonderful planet that we call home.

Pete Owen Jones presents the definitive guide to faith on earth, with eighty rituals across six continents in the space of a year

One year, six continents, 80 rituals - smoking babies, naked men festivals, cargo cults and serpent-handling. From Taoism in China to a Voodoo mass in West Africa, Pete Owen Jones presents the definitive guide to faith on earth.

Pete Owen Jones's epic journey exploring the world's beliefs continues in the Middle East, where he encounters an unknown side to a land scarred by religious strife.

Pete Owen Jones's adventures continue as he embarks on the American leg of his religious odyssey to find out why, when it comes to ritual, anything goes.

After examining 49 faiths, Pete Owen Jones journeys from the Nepalese Himalayas to the south of India to make sense of the mystery of Indian religions, including the transmigration of the soul, karma, the pantheon of gods and the high regard for gurus.

Documentary series presented by Dan Cruickshank revealing the most beautiful and precious things in the world

Dan Cruickshank final journey begins in Mostar in Bosnia and its famous bridge.

In Australia outback Dan Cruickshank unearths termite mounds and erotic cave paintings.

From swords of the samurai to the tranquillity of a temple, Dan Cruickshank experiences the extremes of Japan. Then, in China, he walks the Great Wall, contemplates the massed ranks of the Terracotta Army and finds peace in the Empress of China\'s marble boat

In Calcutta, Dan Cruickshank tangles with a ten-armed naked goddess.

The rarely visited trading domes of Uzbekistan and Fire Temple of Azerbaijan get an incisive Dan Cruickshank appraisal, before he moves on to scale a cliff face towards arguably the biggest archaeological puzzles of the 19th century.

Dan searches for the Arc of the Covenant, from Jordan, through the Holy Land to Ethiopia.

Dan Cruickshank journey reaches new heights of discomfort in the heat of the desert.

Documentary series. Dan Cruickshank visits Turkey, Russia, Poland and Germany.

David Attenborough returns to the island of Madagascar on a very personal quest.

Phil Agland revisits the Baka Pygmy family he filmed 25 years ago in his BAFTA award winning documentary 'Baka: People of the Rainforest'. An extraordinary journey into the heart of the rainforest in Cameroon.

How scientist James Lovelock came to see the Earth as a holistic, self-regulating system.

Alan Titchmarsh travels Britain to discover why our islands are so diverse, beautiful and extreme.

Beginning in a familiar garden setting, Alan peels back the layers of Britain's varied past. He travels to his native Yorkshire to reveal how innocent sounding place names provide evidence of a wild legacy. On Scotland's Isle of May, he discovers how white seal pups hold a clue to Britain's snowy heritage. Finally, Alan explores how diverse rock formations are a testament to Britain's turbulent past.

From Jurassic Oxford to Scotland's Himalayas, Alan explores the secret history hidden in the rocks beneath our feet. He discovers how Scotland and England drifted together from their original locations, near the Equator and the South Pole, and finds fossils which reveal that the Yorkshire Dales was once a sea with coral reefs.