I love it. Fuji has just dismissed the AGW hypothesis as "crazy kook bullshit."Show me an article in Nature or Science that bscjds up your crazy kook bullshit about the result being minescule.
That said, if Fuji really needs to see a source to confirm for him that climate researchers believe most of the projected warming is due to water vapour feedback -- rather than the warming directly related to CO2 -- he could try reading the IPCC's reports, such as this section from its fourth report in 2007.
https://www.ipcc.ch/publications_and_data/ar4/wg1/en/faq-2-1.htmlWater vapour is the most abundant and important greenhouse gas in the atmosphere. However, human activities have only a small direct influence on the amount of atmospheric water vapour. Indirectly, humans have the potential to affect water vapour substantially by changing climate.