As global capitalist economic growth accelerates planetary ecological collapse, this article, originally published on November 10, 2013, argues that - impossible as it may seem at present - only the most radical solution - the overthrow of global capitalism, the construction of a mostly publicly-owned and mostly planned eco-socialist economy based on global "contraction and convergence," on substantial de-industrialization, on sharing, on much less work and much more play and on bottom-up democratic management - is, in fact, the only alternative to the collapse of civilization and ecolo