Plastics in oceans and sea cucumbers

Max Pearson presents a collection of the week's Witness History interviews from the BBC World Service. This week, we hear from a perfumer who in 1990 helped create the world’s first perfume archive in Versailles France. Our guest is Dr William Tullett, a Senior Lecturer in Histor ...  Show more

Max Pearson presents a collection of the week's Witness History interviews from the BBC World Service. On the 40th anniversary of the nuclear disaster at Chernobyl, we hear from one man involved in the clean-up operation. Our guest is Jordan Dunbar, presenter of the BBC documenta ...  Show more

In 1971, marine biologist Edward Carpenter made a shocking discovery finding small bits of plastics floating thousands of miles of the east coast of America in the Atlantic Ocean. More than 50 years later he tells the story of how he had to fight hard to get the scientific world ...  Show more

A boom in demand for sea cucumbers in Asia in the 1990s set off a confrontation between fishermen and conservationists in the waters off the Galápagos Islands, where the protein-rich ocean creature was found in abundance. The high price being paid for the sea cucumbers led to a g ...  Show more

Melvyn Bragg and guests discuss the tiny drifting organisms in the oceans that sustain the food chain for all the lifeforms in the water and so for the billions of people who, in turn, depend on the seas for their diet. In Earth's development, the plant-like ones among them, the ...  Show more

The ocean covers over 70% of the Earth’s surface and can hold more than 150 times the amount of carbon dioxide as air. Around a quarter of CO2 emissions created by human activity each year is absorbed by them. From phytoplankton to whales to seagrass meadows we explore how thi ...