The number is just too large even with a good majority of it being fake (which id say is pretty unlikely) there are just way to many scientists who are willing to recognise the facts that:

1. Carbon Dioxide is a PRODUCT of temperature change, not a cause.
2. Greenhouse gasses form together at the troposphere, in theory, the rate of warming should be highest at this point, however, this is not the case.
3. There is NO direct evidence linking Global Warming to anthropogenic greenhouse gasses.