Ok, this is not directly related to Totterdown, but it is our city and our Harbour.
A team have set up a crowdfunder to raise money to install a Seabin in Bristol harbour. These are new, but simple inventions that float in the water and slowly suck water through. This then pulls in floating rubbish which is caught and easily emptied out a few days later.
Seabins work 24/7 slowly catching floating waste and have been shown to make a real difference to the waterside environment. Perhaps something the green minded folks of Totterdown can support.