If you go to this Abstract and read look at the data and charts it's pretty grim add in BP breach off shore gulf coast it's really scary. This is an excellent website with lots of research there is also another the name eludes me at present I found reports there to substantiate after much digging will have to go back when I reported last year

Global Extinction within one Human Lifetime as a Result of a Spreading Atmospheric Arctic Methane Heat wave and Surface Firestorm
[link to arctic-news.blogspot.co.uk]



Also lots of info here AMEG, the Arctic Methane Emergency Group
[link to www.ameg.me]