Journalist Dan Egan and political economist Jenny Kehl talk Steve Paulson through the finer points of the politics of water - from debates over water diversion to the struggle to keep the Great Lakes uncontaminated.
Beer has gone back from macro to micro. Russ Klisch (Lakefront Brewery) and David Dupee (Good City Brewing) talk with Charles Monroe-Kane about how returning to smaller scale has opened up new creative and business possibilities for beer makers.
There's a famous sequoia named General Sherman that's the biggest tree on the planet. It has its own distinctive history linked to the Civil War general and a radical anarchist group. Cultural historian Daegan Miller tells this fascinating story.
It's one thing to imagine the intelligence of a forest, but could you experience it? The Japanese concept of "forest bathing" might help. Forest guide Amos Clifford is a former Zen teacher who's one of the world's experts on forest bathing.