Ogg
Oggito ergo sum
Having worked in this area of study for a while, A is trivially true. B is the problem child, and the problem is really with the quality of the "evidence" proffered to support the theory of human causation. The science simply lacks rigor, and for good reason. The actual simple truth is that Earth is a large and complex system and humans don't have a reliable system for measuring it. Typically, you'll see studies of the entire globe (yay satellites) and deductive reasoning to make claims about what's happening on the ground -OR- you'll see intensive study of a few pieces of ground and then inductive reasoning to make claims about the entire planet. Both methods have huge error factors. Google "missing carbon sink" for some entertainment.
So, to answer the question, what will make me believe is more rigorous science. My opinion is that human activity has affected the climate, but is nowhere near the primary input to the process.
So, to answer the question, what will make me believe is more rigorous science. My opinion is that human activity has affected the climate, but is nowhere near the primary input to the process.



