Add Yahoo as a preferred source to see more of our stories on Google. Some lakes may appear calm and beautiful, but beneath the surface lie serious hazards. In this video, we take a closer look at ...

The investigative minds at How to Survive explain the "limnic eruption" phenomenon where lakes suddenly release clouds of CO2 that can suffocate everyone along the shore.

Some lakes may appear calm and beautiful, but beneath the surface lie serious hazards. In this video, we take a closer look at nine lakes worldwide that have become infamous for their dangerous waters ...