Costing the Earth episodes available now on BBC iPlayer

Falmouth's plans to attract cruise ships could damage the environment. Tom Heap reports.

Is the UK ready for a new season of wildfires? Tom Heap investigates.

Mining is set to return to Cornwall as tin and tungsten prices continue to rise.

Is it too late to save the healthy fish stocks of the Antarctic? Gerard Baker reports.

Britain's sand dunes are running out of time. Tom Heap joins the battle to save them.

Where will the next pandemic come from and how can it be stopped? Tom Heap investigates.

The peatlands of the British Isles are being destroyed. Tom Heap reports.

Could there be a cheaper, safer way to create nuclear energy? Julian Rush investigates.

Raw sewage regularly pours into the River Thames. Alice Roberts looks for an answer.

Deer numbers are rising fast. Tom Heap asks what this means for the rural landscape.

Can we adapt disease-carrying insects to become friends not foes? Alice Roberts reports.

In San Francisco, recycling is so profitable that they're fighting over the trash.

Tom Heap investigates ways to keep Britain moving if we have another harsh winter.

Britain's electricity grid needs replacing. Does that mean a new invasion of the pylons?

Mining is booming in South America. That's bad news for the environment.

How much disruption will a new high speed rail line really cause? Tom Heap reports.

Will Yemen be the first nation to run out of water? Leana Hosea reports from Sana'a.

How can you help your family breathe clean air? Tom Heap investigates.

Can plants and animals inspire a new generation of medicine? Alice Roberts reports.

Is California's desperate search for water at an end? Tom Heap reports.

Tim Hirsch travels to the Amazon to see the 'real Avatar' and the dam which threatens them

Costing the Earth finds out if teenagers can really learn to turn the lights out.