CNN: Every day, you have a close personal encounter with methane, a key ingredient of something we don't usually mention in polite company: farts.
Perhaps that's why methane is also called "natural gas." Unfortunately, neither propriety nor intestinal discipline can suppress its unpleasantness lately, because now not just us, but the Earth itself is farting.
Recently, three new craters, one of which measured approximately 100 feet wide and over 200 feet deep, were discovered in the Siberian permafrost....