Solutions www.politico.eu How to recycle an airport Berlin’s old terminals and airstrips offer visions of a post-plane world.
Solutions How activists saved Pittsburgh's Hays Woods The city acquired the 600-plus acres of Hays Woods, once used for mining and munitions, in 2016, but the work of restoring the land has only just begun.
Causes www.denverpost.com Colorado millennials have fewer kids due to money, climate change Colorado ranked 8th in the nation for the largest fertility rate decline, according to the Colorado State Demography Office
