See which U.S. rivers are considered the most endangered / The rivers that science says shouldn't exist / 'My children won't know the rivers I grew up with' / Atmospheric rivers aren't new. Why does it feel like we're hearing about them more? / How American cities are rethinking their urban rivers / More than maps: New atlas captures the state of global river systems through human context / English rivers in 'desperate' state: report / Sources: Rivers to make Bucks debut Monday / The world's five most polluted rivers you'd never want to take a dip in - and why