I agree Q that theories must be formed and attempts made to prove or disprove them. Often though it can only done by preponderance of evidence rather than by certainty. Sorry about the global warming tread drift, but I use it as an example. You state that "effects will be ameliorated" and of course that is true, but most people seem to think that they can be stopped or reversed by human action. If it is repeated often enough the public will accept theory as fact.
My own theory is that there is now no master race but genetic selection through a deeper understanding of DNA and the ability to clone will create one. I think that we may be only talking a few decades to a century away and the rest of us will just die off without re-producing.
Thank God that I don't expect to be alive to see it!