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When Nettles Attack!

The British landscape is being choked by familiar enemies. Tom Heap investigates.

• 30 mins

Dash for Ash

UK landfills are full. Should we create energy from our waste? Tom Heap investigates.

• 30 mins

Electrifying Africa: The Power Beneath

A geothermal revolution is set to electrify Africa. Tom Heap visits Kenya's Rift Valley.

• 30 mins

Electrifying Africa: Beyond the Grid

Solar lamps are lighting parts of Africa the grid cannot reach. Tom Heap investigates.

• 30 mins

The House That Heats Itself

Miranda Krestovnikoff looks at new building materials for eco-friendly homes.

• 30 mins

Green Babies

Alice Roberts asks if a UK baby boom could damage the planet.

• 30 mins

Exotic Pets

Miranda Krestovnikoff asks if the trade in pet reptiles and amphibians should be banned.

• 30 mins

The Urban Farmers

Alice Roberts finds urban wasteland being transformed into productive agricultural sites.

• 30 mins

CSI Rhino

Tom Heap finds out how DNA analysis can help prevent illegal trade in Rhino horn.

• 30 mins

The Deepest Lake on Earth

Exploring the environmental secrets of the deepest lake in the world with Tom Heap.

• 30 mins

Fish - The Next Fight

Tom Heap meets the activists hoping to bring an end to illegal fishing.

• 30 mins

Amphibian Extinction

Tom Heap asks what's being done to save the 40% of amphibian species at risk of extinction

• 30 mins

Bees Fight Back

Are modern 'neonicotinoid' pesticides behind the collapse of bee colonies?

• 30 mins

The Cost of Cruising

Is the new generation of cruise ships a threat to our shores? Julian Rush investigates.

• 30 mins

GM Update: Pig 26

Tom Heap investigates the latest developments in GM technology.

• 30 mins

Electric Cars Recharged

Tom Heap asks if a new breed of electric car may finally bring them to the mainstream.

• 30 mins

The Palm Oil Palm Off

Tom Heap asks if a campaign to ban palm oil from rain forest areas can succeed.

• 30 mins

Waste Watchers

Dr Kat Arney meets the farmers, gleaners and big thinkers determined to stop food waste.

• 30 mins

Sharks Attacked

Miranda Krestovnikoff goes in search of the UK's most enigmatic sea creature: the shark.

• 30 mins

Burn That Fat!

Tom Heap explores how fat from waste is helping us to heal and keep warm.

• 28 mins

Intergovernmental Panel on Climate Change

Tom Heap reports on the latest findings of the Intergovernmental Panel on Climate Change.

• 30 mins

CSI Landfill

Tom Heap discovers landfill mining: finding value in what's been thrown away.

• 30 mins

Mind the Gap

Is Britain heading for an energy crisis? Tom Heap asks how do we keep UK lights on.

• 30 mins

Our Neighbours Are Elephants!

Globally cities continue to grow. Can wildlife and humans live together as cities spread?

• 30 mins

Hot in the City

Heatwaves are killing thousands. Tom Heap asks how we can change our cities to survive.

• 30 mins

The End of Plastic

Tom Heap meets a man determined to rid the world of plastic.

• 28 mins

A Toilet for the 21st Century

2.5 billion people on the planet have no sanitation so how do we give toilets to everyone?

• 30 mins

Britain Under Water

The fight back against the flood waters starts here. Tom Heap reports.

• 30 mins

A Greener Way to Go

Do you try to lead a greener life? Tom Heap investigates how to have the greenest death.

• 30 mins

Nuclear Waste's Final Destination

Nuclear power is back on the UK's agenda, but radioactive waste remains the problem.

• 30 mins