There is a big difference in so called scientific evidence between vaccinations, smoking and climate change. The first two are proven via actual evidence, the third is "proven" with doctored "evidence".
If the scientific community had the proof on climate change they would be able to convince the majority, as they have with vaccinations and smoking. They have instead shown themselves to be fiddling the books to suit their hypothesis i.e the IPCC emails, the homogenising of historical temperature data etc.
They are clearly scared of anyone questioning them and instead of having a public debate they are shutting down dissenting voices, Stalin would be proud of his little clones
