The Bristol refill-reuse bottle campaign that is spreading across Europe

Natalie Fee left a job in television to focus on reducing plastic pollution. Her latest project, Refill, aims to make reusing a plastic bottle simpler than buying a new one and it's catching on in cities from Bath to Bonn

Scrambling down the muddy riverbank, Natalie Fee frowns as she looks out across the River Avon. Three weeks earlier she had spent a day with other volunteers collecting hundreds of plastic bottles that were littering the river as it made its way to the sea. Now a new tide of plastic has returned.

"In a sense it is dispiriting," says Fee as she starts to gather up the bottles strewn along the bank. "In another way, it just highlights how important it is we keep pushing ahead with the work we are doing."