Share this postHappy Earth Day!dailyoverview.substack.comCopy linkFacebookEmailNoteOtherHappy Earth Day!OverviewApr 22, 2019Share this postHappy Earth Day!dailyoverview.substack.comCopy linkFacebookEmailNoteOtherShareSource imagery: NASA - National Aeronautics and Space AdministrationFollow Daily Overview here:Instagram | Facebook | Tumblr | Twitter