Make our planet greener! Posted on 01 April 2015 at 05:46 This is an excellent way to make our planet greener! http://news.nationalgeographic.com/energy/2015/03/150328-green-roofs-france-buildings-energy/?utm_source=facebook&utm_medium=post&utm_term=solar,green%20roofs,France&utm_campaign=Climate&__surl__=Ige9s&__ots__=1427884986242&__step__=1