[Economist David Rosnick's research] found that dialing back the amount of time the average person works by 0.5 percent per year would mean a significant reduction in greenhouse gas emissions. If you work 40 hours a week, that would mean shaving about 12 minutes off the average work week per year. Working one minute less per month seems pretty doable. Basically, we’re using a whole lot more of everything when we’re working–electricity, gasoline, heating, air conditioning, etc. Leisure is requires less greenhouse-gas-producing activity.