The world’s first carbon-negative blockchain turned NYC's Times Square dark for one hour ahead of Earth Day<br />» Sign up for our newsletter KnowThis to get the biggest stories of the day delivered straight to your inbox: https://go.nowth.is/knowthis_youtube<br />» Subscribe to NowThis: http://go.nowth.is/News_Subscribe<br /><br />For more environmental news, subscribe to NowThis News.<br /><br />#TimesSquare #EarthDay #Blockchain #Politics #News #NowThis
