It took me about five seconds to find this: https://climate.mit.edu/ask-mit/why-do-we-blame-climate-change-carbon-dioxide-when-water-vapor-much-more-common-gree

It took me about five seconds to find this: https://climate.mit.edu/ask-mit/why-do-we-blame-climate-change-carbon-dioxide-when-water-vapor-much-more-common-greenhouse https://climate.mit.edu/ask-mit/why-do-we-blame-climate-chan... Do you have any reason to believe otherwise besides a couple of anecdotes about looking at the sky and short-term temperature variations?