By saying "anything to do with", to what amount of responsibility are you assigning to "mankind's activities on this planet"?
You said this thread was not about Co2.![]()
you seemed to want to discuss co2, if not i will stop
as for how much mankind is contributing, i do not have a precise amount, but i would call it significant or enough to make a difference
still the increase in methane is also significant, man's and nature's - it seems that we are in a feedback loop concerning methane as the warmer it gets the more methane is released into the atmosphere
bummer