Million dollar question to whom? Randoms in the street and darker corners of the net perhaps, but as far as the science is concerned, it's settled. The most quickly accessible page I know:

https://www.bloomberg.com/graphics/2015-whats-warming-the-wo...

More data, and reference to IPCC, who consistently err on the conservative side, over the years:

https://www.ucsusa.org/global-warming/science-and-impacts/sc...

https://climate.nasa.gov/causes/

So where is the controversy?