Boston: Scientists have created wetsuits with 'artificial blubber' that can keep deep-sea divers warm in the icy cold water. When rescue teams are diving under ice-covered rivers or ponds, the survival time even in the best wetsuits is very limited - as little as tens of minutes, and the experience can be extremely painful at best.

Researchers from Massachusetts Institute of Technology (MIT) and George Mason University in the US developed a simple treatment that can improve the survival time for a conventional wetsuit by a factor of three.