Litter reports

There's a major new British Parliament cross-party committee report on Litter and fly-tipping in England (Web version with witness statements), also as a PDF version (no witness statements).

Also some recent UK think-tank reports on the topic:

A Clean Sweep: rethinking the way we tackle litter.

Exploring the Indirect Costs of Litter in England: Final Report to Keep Britain Tidy.

Scotland also has a rather dull 2014 National Litter Strategy.