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River Quality

Tom Heap investigates claims England's rivers are under threat from 'insidious' pollution.

• 30 mins

Murder in Cambodia

Peter Hadfield investigates the illegal trade in Siamese rosewood.

• 30 mins

In Conversation with David Attenborough

David Attenborough and fellow experts join Tom Heap to preview the Paris Climate Summit.

• 30 mins

Britain Disconnected

Is extreme weather pulling Britain apart? Tom Heap reports.

• 30 mins

Requiem for a King

Tom Heap tells the story of coal from the Industrial Revolution to its apparent demise.

• 30 mins

The City That Fell into the Earth

How do you move a city? Lesley Riddoch travels to Arctic Sweden to find out.

• 30 mins

Acoustic Ecology

Can the sound of the Amazon help to save it? Peter Gibbs reports.

• 30 mins

New York's Big Green Clean

Tom Heap visits New York to find out how the city is cleaning up its dirty waterways.

• 30 mins

The Environment after Exit

Tom Heap examines the potential impact of an exit from the EU on the environment.

• 30 mins

Litter

How do you persuade a throwaway society to use a bin? Chris Ledgard on litter campaigns.

• 30 mins

Beasts of the Border

Tom Heap examines the wildlife impact of Europe's new borders.

• 30 mins

From Iceland with Love

Tom Heap finds out how Iceland could solve Britain's energy crisis.

• 30 mins

Digging Climate Change

Professor Alice Roberts asks if archaeology can help us understand climate change.

• 30 mins

The Mars of the Mid-Atlantic

Peter Gibbs explores Ascension Island, a barren Atlantic rock made fertile by man.

• 30 mins

After Chernobyl

How the fallout from Chernobyl changed Germany forever. Julian Rush reports.

• 30 mins

Four Menus to Save the Planet

How should we eat to reduce our carbon footprint? Four experts debate very different ideas

• 30 mins

The Sun King of China

Peter Hadfield meets Huang Ming, the undisputed leader of China's booming solar industry.

• 30 mins

Big Oil Big Trouble

Can the big oil companies re-invent themselves as climate saviours? Tom Heap reports.

• 30 mins

Cities Without Cars

Keeping cars out of the city: Chris Ledgard explores new plans in Paris and Barcelona.

• 30 mins

Fruits of the Forest

Can the growing of fashionable super fruits save the Amazon rain forest?

• 28 mins

The Growing Season

The warmer climate is extending the growing season, Peter Gibbs asks if this is good news.

• 30 mins

Spiritual Greens

Tom Heap assesses 50 years of green activism with leading members of the movement.

• 30 mins

Wildlife-Friendly Motorways

Can you build a motorway that does not wipe out wildlife? Tom Heap investigates.

• 30 mins

The British Countryside after Brexit

Tom Heap hears four visions for the future of the British countryside after Brexit.

• 30 mins

Forests of the Orangutan

Some of the last refuges of the orangutan are under threat. Peter Hadfield reports.

• 30 mins

Nuclear Futures

Britain's nuclear power stations are being pushed to run well past their planned lifespan.

• 30 mins

Putting the Fizz Back into Planet Earth

Can we find a use for all that pesky climate-changing carbon dioxide? Tom Heap reports.

• 30 mins

Cruising: A Dirty Secret

Tom Heap investigates the link between cruise ships and poor air quality.

• 30 mins

America's Energy Independence

What does the election of Donald Trump as president of the USA mean for the environment?

• 30 mins

Fighting Fire

Tom Heap asks if we can stop the global wildfire epidemic.

• 30 mins