If you have to convince your reader global warming isnt real. Try looking up statistics and factual info that can help prove your point. Make it as convincing as possible by including your beliefs on why it may be a false matter and describe what makes global warming a misunderstood topic by pointing out common misconceptions.
An indirect characterization could be that she is greedy, selfish, and impatient. We can see this in how she goes to the Devil to make a deal with him on her own, rather than waiting for her husband to do it. We can also see this in the fact the story says she keeps things from him, even though they're are married. This could show how she only desires things for herself and doesn't want to share. Hope this helps! :)
The answer would be amity