PORTLAND, Maine — Bone-numbing ocean waters didn’t stop people from taking an icy plunge in the ocean waters off Portland to raise money in the name of global warming.

The Natural Resources Council of Maine held its second annual Polar Bear Plunge fundraiser on Friday at East End Beach. Moderate temperatures made it easier for about 40 people to take the plunge.

Organizers said more than $6,000 was pledged, but Brownie Carson told the Portland Press Herald the event was started more to raise visibility of the issue than to raise money.

The money that is raised goes toward the council’s work to reduce global warming pollution.