Earth Warp: 8: Betrayed | Look and Read

3: Clean Our Air | The Earthshot Prize: Repairing Our Planet

This episode explores the global issue of air pollution and the toll it is taking on our health.

Earth Warp: 1: It Came From Outer Space | Look and Read

Nobody believes David when he claims to have seen a spaceship land in the sea at Southbeach, especially his friends A...

Earth Warp: 10: The Final Countdown | Look and Read

Ollie recovers just in time to defuse the probe and save Southbeach.

Earth Warp: 2: An Univited Guest | Look and Read

David, Amina and Jenny explore the beach and discover Ollie the Alien, who has come from the planet Gia to rescue Southbeach...

Earth Warp: 3: Whoops! | Look and Read

David, Amina and Jenny must help Ollie the Alien to find a malfunctioning space probe, or Southbeach could blow up.

Earth Warp: 4: Codename Charley | Look and Read

The search for Ollie the Alien's malfunctioning space probe 'Charley' continues. Is Mr Belcher's chemical factory causing pol...

Earth Warp: 5: Mystifying Magic | Look and Read

The children have to cover up for Ollie the Alien, who causes problems with his special powers.

Earth Warp: 6: Monster Mayhem | Look and Read

Mr Belcher's factory continues to pollute the water at Southbeach, and his daughter is taken ill. Is it because of the pollution?

Earth Warp: 7: Doctor Miracle | Look and Read

Amina and Mr Belcher's daughter are in hospital with a mystery illness. Ollie the Alien can cure them.

Earth Warp: 9: Hunt the Alien | Look and Read

Ollie disappears to escape the press, but his search for the missing space probe makes him weaker and weaker. Meanwhile, time i...

Coca-Cola's 100 Billion Bottle Problem | Panorama

Coca-Cola sells more than 100 billion throwaway plastic bottles each year. Panorama investigates Coca-Cola's promises to cr...

Eutrophication | Countryfile

An explanation of eutrophication and the use of carbon pellets as a solution.

Farming in the UK | Countryfile

Adam Henson is on his farm in the Cotswolds, looking at how his practice of being more nature-friendly, by limiting the chemicals he uses on ...

Track My Trash | Panorama

Using tracking equipment inside broken TV sets, Panorama investigates the illegal market in electronic waste - and recycling companies whose creden...