Methane Ends It All

Global Extinction within one Human Lifetime as a Result of a Spreading Atmospheric Arctic Methane Heat wave and Surface Firestorm
http://arctic-news.blogspot.com/p/global-extinction-within-one-human.html

H/T: Guy McPherson

Many things could have come down the track
To strike the definitive whack,
But clathrates that thaw
Might be the last straw
That breaks the poor camel’s back.