Runit Dome in Marshall Islands is a repository for atomic waste that the U.S. produced during Cold War weapons testing. (Carolyn Cole / Los Angeles Times) In response to a directive from Congress, the ...

More than 40 years ago, the U.S. buried radioactive waste on Runit Island. The leaking dump site is a point of contention in negotiations over an extended security pact with the Marshall Islands ...

As nuclear explosions go, the US "Cactus" bomb test in May 1958 was relatively small -- but it has left a lasting legacy for the Marshall Islands in a dome-shaped radioactive dump. The dome -- ...

Reporting from Majuro, Marshall IslandsReporting from Majuro, Marshall Islands — Researchers have found high levels of radiation in giant clams near the Central Pacific site where the United States ...

For years, American authorities have asserted they hold no responsibility for Runit Dome, a concrete-capped waste site in the Marshall Islands, where the United States dumped 35 Olympic swimming pools ...

The U.S. Congress has ordered an investigation into the so-called “Runit Dome,” a concrete dome containing contaminated radioactive debris leftover from nuclear weapons tests. The Department of Energy ...

Congress is demanding the Department of Energy investigate an aging, cracking U.S. nuclear waste dump threatened by climate change and rising seas in the Marshall Islands. As part of the new National ...

One of Hawaii’s high-profile politicians has dismissed a recent Department of Energy report concluding that a leaking U.S. nuclear waste repository in the Marshall Islands is safe for people there. “I ...

Climate change threatens to disturb a gigantic heap of nuclear waste contained inside the Runit Dome on the Marshall Islands, known to locals as "the tomb." A 15-month investigation by reporters at ...