A new study has found marine reserves near heavily polluted areas are largely unable to do their job of protecting marine biodiversity - but are still considered vast improvements compared to having no protection.

Researchers from more than 30 organisations, including CEED, undertook the massive study of almost 1800 tropical coral reefs around the world, examining different conservation strategies.

The team of 37 was led by Professor Josh Cinner from James Cook University.

The research is published here.