Failures in the way recycling is set up in the UK is contributing to pollution in our seas
Miriam O'Reilly looks at Britain's use of solar power.
Fukushima made many people oppose nuclear power. What it would take to change their minds?
Chris Llewellyn Smith on quarks, bosons and running the biggest experiments in history.
Miriam O'Reilly investigates whether a crash in prices has made recycling a waste of time.
Tom Heap asks whether the UK is ready for a solar goldrush.
Transforming waste into valuable products, with Bridget Kendall and guests.
Anti-nuclear protests gather force.
Melvyn Bragg and his guests discuss the history and science of nuclear fusion.
Nuclear scientist Dr Sue Ion discusses nuclear power.
The idea recycling is a moral obligation, as well as an economic one, is relatively new.
Jim Al-Khalili asks Steve Cowley if we will ever have energy from nuclear fusion.
Jim Al-Khalili talks to Sue Ion about working in the nuclear industry post-Chernobyl.
South America correspondent Wyre Davies visits the Recycled Orchestra of Paraguay.
Will the promise of energy from the oceans become reality? Tom Heap reports.