April 19, 2011 7:50 pm A Rain Garden? Good for the Environment? We didn’t know what a rain garden was either, but when we did we knew it’d be perfect for NBC 10’s green efforts. Find out what a rain garden is–and how it benefits the earth. US & World Videos 2:02 Going green: City officials work to be more sustainable with renewable energy 0:27 Street sweeping returns to Philly 1:29 Researchers at University of Delaware help create more convenient ways for electric vehicles to charge 2:22 The election is over, so how can you recycle those signs? 0:50 Developer scraps plans for NJ offshore wind projects