Berkshire town's phosphorus-rich excreta is converted by nutrient recovery reactor into pellets for farm and garden use
Just a few yards from the choked M4 motorway, beyond the massive settling tanks and a steaming, 500-tonne mountain of black sewage sludge at Slough treatment works, a modern alchemy is taking place that...
Scientists, politicians, NGO leaders and business executives offer their takes on the Paris Agreement rulebook
COP24: Paris Agreement 'stays on course' as Rulebook breakthroughs underline global commitment to climate action
Talks in Katowice overran by more than a day, as late rows over carbon market rules escalated, but final agreement paves way for a ramping up of global decarbonisation efforts
Scheduled end of COP24 sails past as countries tussle over details of Paris Agreement Rulebook
Negotiators expect talks to run into the weekend, but hopes for finished rule book remain high