Pestilence

"The only hope is that our species will be leveled by the coming plague, whatever it's going to be -- which of course will happen before too long -- and then we start over again. But as we know, speciation takes a million years. So this diversity of life that we inherited in our time won't be back for a long time to come. What's left just depends on how soon our numbers are stripped back. It's not the earth that's endangered; it's everything else that lives with us. Capitalism is a giant Ponzi scheme -- it's got to crash eventually." - T. C. Boyle