I would like to express some views and raise some questions about the attribution of global warming to the human population of the world and what we are supposed to do about it.
Firstly, it seems to me that the data that scientists are using must have been relatively recently collected and probably does not span more than 100 years. I therefore wonder if this is not yet another case of unscientific hysteria, just like the Y2K debacle at the end of the 20th century.
In any event, according to recent interpretations of the Mayan calendar the world is going to come to an end on December 21, 2012. If true, there doesn’t seem to be a lot of point in worrying about carbon credits. I personally plan to do all my Christmas shopping on December 22, 2012 just in case.
As others have said, it is a known fact that the earth wobbles in its orbit around the sun and these variances cause ice ages and periods of warming. Has anybody actually measured the current distance of Earth from the sun? Solar activity like solar flares also have a significant effect on the Earth’s climate so what is going on in the sun right now?
I seem to recall from my school days that frozen water (ice) occupies a greater volume than water. So, if the ice caps melt wouldn’t the resulting water occupy less space than the melted ice with the result that sea levels should fall? I have lived in the Cayman Islands for over a quarter of a century and have to say that I have not noticed local sea-levels rising in any significant way.
There also seems to be a lot of confusion between the control of carbon emissions and general pollution. I think that all right-minded people would agree that cutting down on the levels of plastics and toxic chemicals which are added to the environment by humans would be a sensible idea. I would not be so sanguine about turning off the air-conditioning during the height of summer just as people in colder climes would be unlikely to want to turn of their central heating in mid-winter.
In conclusion I have to say that I think that the current global warming scaremongers have another agenda. France has already revealed that it is planning to tax its citizens based on their individual carbon emissions which suggests to me that the whole issue is designed to squeeze yet more money out of hapless tax-payers, probably for the benefit of big business.