Off-topic for this blog, and yet somehow feels relevant: the gross domestic products of 50 countries depicted in terms of the gdp of the American states to which the most closely compare. Developed by University of Chicago professor Christian Broda. (click to enlarge the image).
At the very least, this demonstrates the U.S.'s extraordinary place in the global economy, and, by extension, its role in the development of clean tech/ renewable energy and the fight against global warming.
Hat tip to Josh Spear.