Methane that is sequestered in permafrost and deep sea clathrates has been alleged to be (a) potential serious source of positive feedback from global warming. Accepting this, I propose that we start a program immediately to mine these clathrates and burn them to CO2 and water, hence reducing the potential impact. There is very little methane in the atmosphere, hence small increases in methane will have a major impact on climate. There is a lot of CO2 in the atmosphere, hence large increases in CO2 are required to have any impact on climate.
Yes, yes, this post is short on links to sources. Google is your friend. Don’t take my word for any of this.