For some reason there is a persistent group of people who either want to deny, or are not aware, that there is a solid scientific foundation to the overwhelming consensus on climate change.
Of course the fact is that climate science is built on thousands of publications and many decades of observation. Spending too much time arguing with climate deniers is an annoying distraction from actually doing something about the causes of climate change.
This video provides a useful summary of the fundamental discoveries, the basic facts that we know beyond a doubt, about global warming.