Working for utility firms, Opower sends reports to people detailing how their usage compares with similar homes in their area. (newscientist.com)
honor of Earth Day, a water utility firm offers teachers a free online toolkit to facilitate water education. (educationworld.com)
Celebrate Earth Day With Lessons on WaterIn honor of Earth Day, a water utility firm offers teachers a free online toolkit to facilitate water education. (educationworld.com)