Do You Really Want to Live Forever? - Reason.com
It's rare that I recommend something from Reason.com (as far as I can tell, everything is always a government's fault), but this lengthy review of a book talking about the technical and philosophical problems with imagining how immortality would work is very good.
Coal use is soaring because demand for electricity is soaring. Between 1990 and 2010, global electricity production increased by about 450 terawatt-hours per year. That’s the equivalent of adding one Brazil (which used 485 terawatt-hours of electricity in 2010) to the electricity sector every year. And the International Energy Agency expects global electricity use to continue growing by about one Brazil per year through 2035.