What’s going on with sargassum seaweed?

Iran has been shaken by protests on a scale not seen since its 1979 revolution. Demonstrations that began in the country’s capital over the state of the economy have spread to multiple cities, with wider calls for political change.The government has called the demonstrations "rio ...  Show more

In February 2026, the last remaining nuclear arms control treaty bilateral between Russia and the United States is set to expire. The aim of the New START agreement was to reduce and limit the number of strategic nuclear warheads, but once this treaty comes to an end it means the ...  Show more

It's a familiar feature of our oceans and beaches and yet its environmental impact has largely been overlooked. Now supporters say seaweed can help us address climate change by reducing our reliance on fertilisers, and by reducing the methane emissions produced by cows. On top of ...  Show more

For World Ocean Day, Gaia Vince finds out how the planet’s seas could help us to generate clean power, capture CO2 and feed the world. Gaia is joined in the studio by science journalist and marine biologist Olive Heffernan. She dives into the controversy regarding the potential o ...  Show more

The first license of its kind has been granted for deep-sea mining. It will be used to run early tests to see whether the seabed could be good place to harvest rare earth materials in the future. These earth minerals are what powers much of our modern technology, and the demand i ...  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 ...