Re our world's climate havoc during the last month of 2010. I am now sure that those record freezes in the northern hemisphere and droughts, floods and bushfires in the southern hemisphere are the result of atmospheric pollution caused by the billions of tonnes of CO² and other chemical elements which the atoms of them form the nucleus of rain drops which fall as snow and/or rain – precipitation. Those storms will still form as CO² etc is continuing to be spewed into the air! From aircrafts, vehicles, fires etc. If pollution was to cease now – which is impossible, it would take a couple of centuries for the atmosphere to clear! We humans have caused this situation, as atmospheric pollution began with the advent of the industrial revolution – 150 years ago. I am not pessimistic, I just take in the facts which are so obvious with our climate change and it will get worse!
Ernest M Izett, Tauranga.