Costing the Earth Episodes Available now
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The Urban Farmers
Alice Roberts finds urban wasteland being transformed into productive agricultural sites.
Exotic Pets
Miranda Krestovnikoff asks if the trade in pet reptiles and amphibians should be banned.
Green Babies
Alice Roberts asks if a UK baby boom could damage the planet.
The House That Heats Itself
Miranda Krestovnikoff looks at new building materials for eco-friendly homes.
Electrifying Africa: Beyond the Grid
Solar lamps are lighting parts of Africa the grid cannot reach. Tom Heap investigates.
Electrifying Africa: The Power Beneath
A geothermal revolution is set to electrify Africa. Tom Heap visits Kenya's Rift Valley.
Dash for Ash
UK landfills are full. Should we create energy from our waste? Tom Heap investigates.
When Nettles Attack!
The British landscape is being choked by familiar enemies. Tom Heap investigates.
Robot Farmers
How satellite technology and advances in robotics may revolutionise the future of farming.
Berlin's Big Gamble
Can Germany produce all its power from green energy? Tom Heap investigates.