Plastic patrol: "I got the engines out of the water".

After recovering from cancer, Lizzie Carr began to recover.

The more I paddled in London, the more I noticed the plastic levels in our channels.

In his "determined adventure" in Godalming, Surrey, Kendal, in the Lake District, he photographed the floating plastic and added his tweets #PlasticPatrol.

Now he has developed an application that allows people to photograph the plastic pollution that marks the photograph geographically.

Through a partnership with the University of Nottingham, he hopes that the information collected will help shape government policy on plastic pollution.

Video journalists: Christina McSorley and Gem O'Reilly

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