by Allan Taylor

Created on: April 15, 2010

The study of climate change is an important scientific activity  today.

An  increasing problem is that the objectives of  these studies  have  become distorted and politicized to the extent that innumerable lobby groups and Green businesses  see the opportunity to make money from it at the expense of  a  passive and largely gullible populace.

But what is “climate change”?   We must define what we are talking about before delving into what effects it may have on society and the environment.    Many people confuse it with global warming either accidentally or on purpose.   The best definition I have found in the literature is as follows:   “Climate change is any difference in the average weather of a region taken over a suitably long period (usually taken to be 30 years).  

The global warmers and promoters of  the idea of  CO2  emissions  inducing  climate change are way out on a limb with their unverified hypothesis.   Their theory of manmade warming  is  derived from computer modeling which is not evidence.  The Null Hypothesis still stands that observed climate variations are natural until proven otherwise.  This  causation controversy is not part of the topic considered here.

Historically, climate change has had a profound effect on human development and the environment.   It explains where we are today,  and  our racial differences  from one continent to another.

The Earth is a dynamic planet.   It is  never exactly at equilibrium.   Everything  is in the state of change,  and has been  from the dawn of  time,  or  from  the Earth’s  beginning some 4.5 billion years ago.   Particularly  so  in the past  500,000 years where we have experienced at least  four  Ice Ages separated by warmer interglacial periods lasting around about  11,000 years.  

The peak of the last Ice Age was  a mere  20,000 years ago  when  global temperatures are estimated to have been  10 degrees C  lower than today.   Much of  North America and Europe were covered in an ice sheet in places 2 km thick extending  to where Chicago city is today and covering most of the British Isles.  

Recently in Australia we have experienced an excellent 

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