Earlier this month, campaigner Shlomo Dowen won a landmark High Court case that forced Nottinghamshire council to reveal its financial arrangements with waste contractor Veolia Environmental Services. So what did Veolia want to keep so quiet?
Inside vast, 360-sided, 7000 cubic metre underwater cages off the coast of Panama, marine biologist Brian O'Hanlon is trying to solve some of the problems with large-scale aquaculture
The powerful antibacterial nanosilver can now be found in everything from air fresheners and food packaging to babies' bottles and bandages. But has anyone looked at the risks?