Weisman: Farting craters silent but deadly

Newly discovered methane-spewing craters in Siberia are one more sign of a planet in trouble, writes Homelands’ Alan Weisman in an opinion piece on CNN.com.

“Every day, you have a close personal encounter with methane, a key ingredient of something we don’t usually mention in polite company: farts…. Unfortunately, neither propriety nor intestinal discipline can suppress its unpleasantness lately, because now not just us, but the Earth itself is farting.”