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Raising a Stink

Alice Roberts discovers the potential savings available by harnessing the power of sewage.

• 30 mins

The Environmental Cost of Ageing

Tom Heap examines the carbon footprint of older people.

• 30 mins

Whose Amazon Is It Anyway?

How arguments about the protection of the Amazon rainforest are playing out in Brazil.

• 30 mins

Carteret Island

How the Carteret Islands are slowly being submerged by the rising sea.

• 30 mins

Turbines or Tearooms

Can we break the log-jam holding back renewable energy? Tom Heap investigates.

• 30 mins

Sell-by Dates

Tom Heap finds out if dates on food are past their sell-by date.

• 30 mins

Buildings

Tom Heap asks if we are looking in the wrong place for solutions to climate change.

• 30 mins

Supergrid

Tom Heap tests the notion of a 'Supergrid' linking renewable resources across Europe.

• 30 mins

The Great Mineral Heist

Alice Roberts investigates the loss of vitamins and minerals from our staple foods.

• 30 mins

The Three Peaks Challenge

Are charity mountaineers damaging our highest peaks? Alice Roberts reports.

• 30 mins

The Art of Protest

Tom Heap finds out if eco-activists are facing their toughest challenges yet.

• 30 mins

Guilt-Free Flying

Can technology remove the guilt from flight? Tom Heap and Bruce Dickinson investigate.

• 30 mins

Countdown to Copenhagen

Tom Heap on the prospects for the United Nations' crucial climate change conference.

• 30 mins

The New Diggers

Alice Roberts meets the people making Britain's wasteland grow.

• 30 mins

Keep on Trucking

Our goods need to be delivered, but at what cost? Tom Heap goes trucking to find out.

• 30 mins

Protecting the Past

Alice Roberts investigates the threats posed to our great historic sites by climate change

• 30 mins

Greening Fido

Could it be time to put an end to our pets? Alice Roberts asks if Fido can ever be green.

• 30 mins

The Big Clean Up

We need to build new homes and schools on ex-industrial land, but how safe is it?

• 30 mins

Fusion Future

Tom Heap investigates the real potential of fusion power.

• 30 mins

Plants to Pills

Tom Heap witnesses the worldwide police operation against the trade in endangered species.

• 30 mins

Turbines in the Back Garden

Do new rules make it profitable to make your own electricity? Tom Heap investigates.

• 30 mins

Eco-City Limits

Tom Heap tests the limits of an eco-city being built in a desert.

• 30 mins

The Price of Nature

Tom Heap finds out if it's really possible, or desirable, to put a price on nature.

• 30 mins

Deep Sea Treasure

The crew of the RRS James Cook explore the depths of the ocean in search of new life.

• 30 mins

The Great Flood of Paris

Paris was devastated by flood 100 years ago. Tom Heap learns the lessons for today.

• 30 mins

Volcanoes: Friend or Foe

Could volcanoes be unlikely allies in the fight against climate change? Tom Heap reports.

• 30 mins

Cerrado

Brazil's Cerrado is one of the world's richest eco-systems. Can it be saved?

• 30 mins

Rethinking Climate Change

The battle against climate change needs a radical rethink. Tom Heap reports.

• 30 mins

Rare Earth Metals

Tom Heap finds out if the supply of metals vital to electronics could be exhausted by 2012

• 30 mins

Cleaning Up the Ganges

Tom Heap visits the holy Ganges river to discover if India's life source can ever be clean

• 30 mins