Global warming deniers love to point out that, yes, the earth is warming but it is not related to human activity. They really, really want to believe that we can continue to pump shit into the atmosphere without bound and never suffer any ill effects from it. It is this belief, which is not backed up by any science whatsoever, that leads virtually all Right Wingers to reject the overwhelming consensus of the scientific community.
The image at right is taken from A report of Working Group I of the Intergovernmental Panel on Climate Change. It shows the atmospheric concentrations of greenhouse gases over the last 10,000 years. The ancient measurements are from ice cores.
What is crystal clear on this graph is the effect of the industrial revolution on the amount of these gases in the atmosphere. The graph steepens at about 1800 and then gets even steeper around 1960.
The rise in the concentration of global warming gases is correlated to the global average temperature and the global average sea level and is inversely correlated with the northern hemisphere snow cover. (See the link above for the plots.) This report is from an international body of climate scientists.
How can you look at this data and the correlation with global climate change and conclude that anthropogenic climate change is impossible?
You can’t. People that do so are swayed more by political or economic arguments than climate science. They pull out opinions from minority scientific views and claim it backs up their claim. They ignore the data because it is an inconvenient truth.
The facts here are common sense: more greenhouse gases means more greenhouse effect which means higher temperatures, a changing climate and a dangerous situation that may be beyond our ability to solve.
The conservative approach is to be cautious. I wonder why conservatives don’t see it that way?