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Waste, trash, garbage – whatever you call it, unwanted materials have become a major presence in many of our lives and our environment. Every year it is estimated that humans around the world produce 2 billion metric tonnes of waste. Listener Clare from Devon in the UK wants to start tackling this herself. She would like to know if she can not just sort but process all her own recycling at home.

Presenter Marnie Chesterton attempts to find out by asking the professionals. She heads out to an industrial-scale recycling plant to see if any of their gear could work in our homes, hears from reporter Chhavi Sachdev how waste collectors in Mumbai, India have to balance thrift with risk, and asks environmental engineer Jenna Jambeck whether she thinks solely domestic recycling is possible.

(Image: Garbage bags with various bits of recycling, iron, paper and plastic. Credit: Getty Images)