On Monday the Sustainable Development Commission will release its report on tidal power across the UK.
In the wake of a government announcement last Tuesday, it is widely expected that the SDC will recommend further detailed appraisal of a Severn Barrage project. Greenpeace has long supported renewable energy, including getting power from the tides if the environmental impacts can be minimised.
John Sauven, Executive Director of Greenpeace UK, said: