TOKYO -- Ten years ago, Paul Adams was scuba diving among World War II shipwrecks in a popular tourist spot in the Federated States of Micronesia when he found black, oily bubbles rising from the wrecks.
Oil leaks put coral reefs, mangroves and fisheries at risk, researcher warns

Major Projects Foundation conducts fieldwork on sunken vessels in Chuuk Lagoon in the Federated States of Micronesia in May. (Major Projects Foundation)
TOKYO -- Ten years ago, Paul Adams was scuba diving among World War II shipwrecks in a popular tourist spot in the Federated States of Micronesia when he found black, oily bubbles rising from the wrecks.