|[ click on image to enlarge ]|
|for interactive version, see http://arctic-news.blogspot.com/2013/08/methane-levels-keep-rising-rapidly.html|
On the Southern Hemisphere, there's a huge amount of methane recorded over Antarctica. That has been going on for quite some time, but the high levels of methane over the oceans on the Southern Hemisphere have only shown up recently. They could be caused by one or more methane hydrates getting destabilized in the ocean between Antarctica and South America.