What happens when redistricting fails to recognize blacks’ green interests?

Grist’s David Roberts has written quite a bit about America’s intensifying political polarization and how it remains a firewall for Congress’s chances of passing climate legislation. Roberts illuminated the myth behind one of Obama’s most popular proclamations, writing, “There’s red America, a sparsely populated but vast landscape of rural and suburban areas, and there’s blue America, the ‘urban archipelago‘ upon which the left’s constituencies — single women, minorities, cosmopolitans — cluster.”

Obama has since come around to this reality. More importantly, though, the two dominant political parties understand this reality,...