What makes climate change different from ghosts? Lots of people think ghosts are real. Science can't prove they are not.

Neither can science prove they exist. Does that mean they don't? Fuck knows, but until it can be proven one way or the other, it's not real science. Even if every single scientist in the world said they believed in ghosts, without proof, it's not real science.

Climate change is no different, except more people believe in it.