More than 40 years ago, U.S. authorities buried plutonium and other waste from nuclear testing in an unlined bomb crater on Runit Island and encapsulated it with concrete.(Carolyn Cole / Los Angeles Times)

Fallout in the Marshall Islands

Between 1946 and 1958, the United States detonated 67 nuclear bombs on, in and above the Marshall Islands. Today, a massive structure called Runit Dome holds more than 3.1 million cubic feet of U.S.-produced radioactive soil and debris.

Now the concrete coffin, which locals call “the Tomb,” is at risk of collapsing from rising seas and other effects of climate change. And it’s only one part of a troubled history of how the U.S. has treated the Marshall Islands, with devastating effects for those who live there and haunting memories for those who witnessed the tests.

Our special report stems from 15 months of reporting and five trips to the islands by a team from the Los Angeles Times and Columbia University’s Graduate School of Journalism.

See this amazing report here.