The United States has stumbled into a potential military confrontation with Russia over Ukraine - a dangerous predicament that could become a Cuban Missile Crisis in reverse.
The "Black Death" moved across Eurasia, driven by climate events that were and still are frequently occurring.
David Kristjanson-Gural is associate professor of economics and senior fellow of the Social Justice College at Bucknell University. His writing appears in the LA Progressive, Commondreams.org, the Williamsport Guardian and the Daily Item. He is a member of the Spilling Ink Writers' Collective.