If you’ve already given up on your New Year’s resolution to hit the gym, take heart. Your inactivity wins you the environmental high ground, as most gyms are enormous wastes of water and electricity.

The people at The Green Microgym in Portland, Oregon are doing everything they can to green up their workouts, even harnessing human power. Ryan White reports.

Portland’s Microgym may be green, but wouldn’t it be nice if all your calories were converted into some tangible benefit beyond slimming your waistline?

This is the thinking behind another Green Gym programme in Britain, which puts the work back in workout by getting people moving in forests and parks across the country. Not only do these gyms improve one’s health, they also beautify the environment. And, as reporter Allis Moss found out, they’re more fun.