A total of 20 Rovers and Rangers of PNG PG GOVT. COLLEGE RAMNAGAR NAINITAL UTTARAKHAND State INDIA Observed the Earth Hour on 25 March 2017. We switched off the lights from 8:30 P.M. to 9:30 P.M. of our homes and motivated many of our neighbours also. We discussed the topic in our Group and the programme was a successful one.