The event has been organised by the Royal Society for the Protection of Birds (RSPB), Bristol Port and Regen SW, an independent sustainable energy organisation.

BBC: Severn Estuary

His site, Stem Cell Regen Med, at stemcellregenmed.com, says it can offer treatment for a long list of life-threatening diseases, including ALS, Parkinson's, Alzheimer's, cancer, brain damage and lung illnesses.

CNN: U.S. patients try stem cell therapies abroad