What are they and why does UK want them?
Kate Stephens and Victoria GillBBC News science teamGetty ImagesWhat about nuclear waste and security? Some experts do have concerns about nuclear waste. Scientists...
Warning over ‘dirty secret’ of toxic chemicals on farmers fields
Jonah FisherEnvironment correspondentGetty ImagesWith the alternatives to sewage sludge disposal costly, there's broad agreement that the recycling of sludge into fertiliser has to...
Oceans cannot become ‘wild west’, warns UN chief
Esme StallardClimate and science correspondentReporting fromUN Oceans Conference, Nice, FranceGetty ImagesUnregulated mining in the deep sea should not be allowed to go ahead,...
UK proposes wider ban on destructive ocean bottom trawling
A ban on a "destructive" type of fishing that drags large nets along the seafloor could be extended across English waters, the government...