Neolithic
4000-2000BC
Lifestyle Changes

'......... was also during the Neolithic that people first began to build recognisable ritual monuments, perhaps an acknowledgement of their altered relationship with his physical environment.

The lifestyle of humankind was not the only thing that saw change at this time. The preserved remains of beetles and other insects found within peat deposits tell us that the climate too was altering. Beetles have been found that live in a climate that was 2-4 degrees colder in the winter and 2-3 degrees warmer in the summer than our current climate. This different climate would have had consequences for where and when certain human activities could take place'

I took the above from a Somerset County Council report.
Unfortunately, I'm still trying to find their source for the information.

FTC