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Sci-tech

Rio's road to sweet success

In this episode of Urban Visions we are in Rio de Janeiro, which like most big cities is facing the challenge of growing urbanisation. And getting

Sci-tech

Turning waste into gas

Turning waste into energy is nothing new. The problem is the process leaves behind a heavy carbon footprint. But a UK company claims to have

Sci-tech

Sea fuel

It’s a bright sunny day off the south-west coast of Ireland. A team of local marine researchers have taken their boat out to check on their seaweed