Kit the Coyote
New member
what is the major greenhouse gas?
i'll give you a hint - your unpolluted river is just full of it
and the horn is totally ignorant of it - betcha you are too
Spoiler
I am curious as to why you think this is of any relevance? You are quite correct that water vapor is the largest greenhouse gas but it is not the one that is changing significantly. The amount of water in the global environment is fairly stable. The real impact of water vapor is that as the environment warms, there is more water vapor taken up in the atmosphere thus it acts as a source of feedback that helps accelerate or decelerate changes accordingly.