Newsweek title was: > Massive Craters From Methane Explosions Discovered in Arctic Ocean Where Ice Melted but to clarify the not-recent time frame, perhaps:

Newsweek title was: > Massive Craters From Methane Explosions Discovered in Arctic Ocean Where Ice Melted but to clarify the not-recent time frame, perhaps: Methane Craters from Ice Age Melting found in Arctic Ocean