Evidence of global warming:
NASA says “Sea level is THE yardstick of global warming”. The rising sea level shows that our planet is warming.
Evidence of human causation
This evidence fits together
Notice how all this evidence fits together and is consistent with humans causing global heating. For example, it makes sense that both “global temperatures are increasing” and “Arctic ice is decreasing”. It is the convergence of evidence like this that leads to scientific confidence.
Updated 14 Dec 2020