Can small actions bring big results?
Apparently, they can -- as suggested by a recent article appeared on PNAS:
Thomas Dietz, Gerald T. Gardner, Jonathan Gilligan, Paul C. Stern and Michael P. Vandenbergh. 2009. Household actions can provide a behavioral wedge to rapidly reduce U.S. carbon emissions. PNAS 106(44):18452-18456.
The following video conveys a consistent message: