Rare Earth

The transition to an economy based on renewable energy and electric cars needs huge quantities of materials like copper and rare earth metals. Sourcing them can be a problem. Mining damages the surr...

20 Juni 202553min

Datacentres are big business, and vast numbers of them are being built around the world. In the UK, Amazon has announced plans to invest £8bn over the next five years building new datacentres, £3bn ha...

13 Juni 202552min

In 2019 the UK made a commitment to reach net zero carbon emissions by 2050. Since then the political consensus has broken down and analysts doubt that current government policy has any chance of rea...

6 Juni 202553min

Insects are the quiet engineers of the environment - pollinating our plants, balancing our ecosystems and clearing up our waste. Some insects can digest plastic, and they play a vital role in crop pro...

30 Maj 202553min

From ancient Rome onwards our civilisation has been built on concrete. It's incredibly useful but emits huge quantities of carbon dioxide in its production. What are the alternatives? Tom Heap and Hel...

11 Apr 202553min

The islands of the Pacific Ocean are on the frontline of climate change. Sea level rise will eventually erase some from the map and make many more uninhabitable. Tom Heap and Helen Czerski hear from...

4 Apr 202553min

The shipping industry is an enormous source of pollution. Ships burn dirty fuel oil that helps contribute to the industry's global carbon emissions and even in port they continue to belch out noxious...

28 Mars 202553min

PFAS chemicals are all around us. They're used in frying pans, food packaging and waterproof coats but they have been linked to thyroid disease, liver damage and cancer. The trouble is that PFAS jus...

21 Mars 202553min