Taking a cue from 2003′s  Calendar Girls, a movie in which older British women bare all for leukemia research, Erika Biddle decided to jump on the train of the increasingly popular brand of calendars where locals pose naked for a cause.

In celebration of Earth Day’s 40th birthday, Biddle only asked women over 40 to pose, resulting in 15 women ages 44-78 posing au naturale in naturally beautiful locations.

The 500 calendars were sold, raising $8,000 for the non-profit organization Green Living and Education.

To hear about all the locations Biddle chose, read the full article here

In other Nude News, these women (and 2 men!) protested naked against the war in Afghanistan, hoping to put an end to the myth that War is Peace