water pollution

Ryan Finnerty

Honolulu’s Ala Wai canal is one of the most polluted waterways in the country. It’s so contaminated that in 2006, a local resident died from bacterial infection after falling into the Ala Wai boat harbor. But one local group thinks they can make the canal safe for swimming and fishing in just 7 years, without spending millions of dollars.

U.S. Fish and Wildlife Service / Flickr

Some of Hawaii's most polluted waterways may soon get help from an unlikely source: oysters. After a successful test project in Pearl Harbor, the Hawaiian Islands branch of the Waterkeeper Alliance is seeking to expand the use of oyster colonies to clean polluted waters.