Eve Lundsten News Today

Off the coast of Big Sur, California, deep beneath the waves, lies a mysterious landscape dotted by large holes in the clay, silt, and sand.

For once, human activity seems not to be the main cause -- but we need more data to make sure.

Melting permafrost is causing parts of the seafloor to collapse. Giant "sinkholes" — one of which could devour an entire city block holding six-story buildings — are appearing along the Arctic seafloor, as submerged permafrost thaws and disturbs...