Let us begin with a fact. There is abundant evidence from geology, archaeology, history and meteorology, that climate changes from time to time and there is abundant evidence that changes can be rapid and extreme. For example about 100,000 years ago the climate of British Isles, like the rest of Europe as far south as the Alps, changed from sub-tropical to arctic in the space of a few hundred years.
There are many such instances and yet there seems to be a presumption that climate change is a new phenomenon brought about solely by modern man‘s abuse of the environment.