source: Wislawa Szymborska, Stanisław Barańczak, Clare Cavanagh (2000). “Poems, New and Collected, 1957-1997”, p.16, Houghton Mifflin Harcourt
topic: Temperature, Failing, Sustaining Life

source: Robert Pollin (2015). “Greening the Global Economy”, p.121, MIT Press
topic: Oil, Yield, Coal, Sustaining Life
topic: Believe, Yield, Oil, Sustaining Life, Cutbacks
topic: Stars, Moon, Flames, Airy, Sustaining Life
topic: Spiritual, World, Ends, Spiritual Truth, Sustaining Life
topic: Mean, Cutting, Winter, Sustaining, Sustaining Life