Well, I think you mean anthropological climate change is a hoax. The climate most definitely changes naturally over periods of time, particularly in alignment with greater and lesser cycles of solar activity.

You should really think about what words mean, as confusing our language is one of the primary methods of control. They've managed to make the very concept of "Climate Change" synonymous with Climate Change as a result of human activity, in your mind, and in so doing stopped you from thinking clearly.

All things CHANGE.