Have you ever noticed how climate change deniers (who call themselves skeptics – ClimateSight explains the difference) like to point out that global warming is a theory? They say it as if the radical enviros who “believe” in the theory are trying to mislead the public into thinking of climate change as a fact.
Well, let me tell you something. When deniers claim that global warming is a theory, they are absolutely right! But that doesn’t mean that we shouldn’t act on it. The theory status does not make the science unreliable. Most of what we learn in science class is theory. Relativity is a theory. Plate tectonics is a theory. Heliotropism is a theory. Even gravity is a theory. How many people question them?
There may be a scientist somewhere who has alternatives to commonly accepted theories, but the general public does not usually question them. If you ask an average person if he or she believes in the Theory of Relativity, the person will probably not claim to know enough details to question it, and certainly will not purport to know more than the scientists who accept it.
Climate science should be the same. It is different only because, unlike most other areas of science, its implications are politically inconvenient and they require lifestyle changes that many people are reluctant to accept.