Man made climate change, AKA, the extreme levels of change in temperature, atmospheric composition and acidity levels in the oceans we are experiencing right now.

I think splitting hairs over the term is unnecessary. I'm sure there are people who believe earth's climate has always been the same but they are probably very few. The most popular position among climate change deniers, as far as I know, is that this changes are part of the natural cycle and humans have little or no impact.