Energy effi­ciency used to mean keeping the ther­mo­stat below 68 degrees or putting on a sweater.

No longer.

A gen­er­a­tion of study and tech­no­log­ical advances have trans­formed the field — making huge eco­nomic and envi­ron­mental sav­ings possible.

In his State of the Union address on Tuesday, Pres­i­dent Obama chal­lenged the nation “to cut in half the energy wasted by our homes and busi­nesses over the next 20 years.”

Is it even pos­sible? And could the wide­spread use of energy effi­cient tech­nolo­gies stem the rising tide of cli­mate change?

Energy and envi­ron­mental experts Dick Henry and Dou­glas Foy offer their insights.

Read the article at WBUR →