An article, in five parts, on climate change, ice ages, and homo sapiens, our genesis, progenitors and ultimate fate. Written by William F. McClenney, P.G. R.G.A., a California Licensed Professional Geologist and Registered Environmental Assessor. He was also appointed the first Certified Environmental Auditor in Victoria, Australia in 1991, empowered to sign-off on contaminated site cleanups. He has been investigating and cleaning up hazardous waste sites for over 22 years.