It may not offer the toehold-challenge of traditional rock climbing, but then, traditional rock climbing doesn't usually come with a pay cheque. These climbers have been employed to scale huge wind turbines for maintenance, which is green in so many ways.
Instead of using huge, expensive and environmentally-unsound cranes to get repairs done, owners of wind turbines have started hiring rock climbers to do what they do best - get way high up. It's cost-effective, environmentally friendly on a couple of levels, and most importantly (for our purposes), looks really freaking cool. [Treehugger]