What an interesting article and set of comments.
The crux seems to be the alleged anthropomorphic climate change (ACC) that is presumed to be occurring because many scientists have nailed their colors to that pole in order (mainly) to secure research funding. As an earth scientist, I first heard of the possibility of ACC in the late 1970s, when there was a comment made that an increase in CO2 could possibly cause the Earth and surrounding atmosphere to warm. Since then ‘scientists’ have developed a plethora of theories and have coaxed data into shape (e.g. the ‘hockey stick shaped curve’ fiasco that appeared mysteriously in a rewrite of an IPCC document) to sell to the world that ‘they’, the people of the developed world, are the cause of the problem and that ‘they’, the people of the developed world, have to pay ‘them’, the decision makers, copious amounts of money to line there pockets to change what is, in fact, a natural occurrence and which is completely unstoppable by human forces. It is the hoax of the century, if not of all time.
Comments were made about the time taken for effects to take place after a particular causal event. There have been reports that glaciers retreating during the past few decades are evidence of current global warming events. It is more likely that these retreats are simply a continuation of the process of global warming that began with the end of the last glacial period about 15,000 ago. Certainly when I was in Antactica during the 1970s there were relic glaciers that were still slowly melting from that time. 12,000 years is a mere blink of the eye in Earth’s history. It is only when compared to our lifetime that it seems like a long period of time. Short term, i.e. less than 100 years, oscillations in weather and associated phenomena are not indicators of global climate change.
During the past 2.8 million years (0.05% of Earth’s lifetime to date)there have been about 25 cycles of glacial periods lasting around 100,000 years followed by interglacial periods of around 15,000. We are approaching the end of the latest interglacial period so if the cycle holds good, we are preparing to enter another glacial period, a period of severe cooling where glaciers extend further from the poles, covering currently productive farmland, sea level drops by around 100 meters and civilization is destroyed, reverting to tribalism. Geological evidence indicates that immediately before each descent into a glacial period there is a slight warming of the climate, such as has occurred in the past few decades. This evidence also indicates that while the rise from a glacial to an interglacial is gradual, taking thousands of years, the reverse process is rapid taking mere decades or centuries due to the positive feedback effect from the increased albedo from extended ice fields reflecting back into space the heat from the sun. These cycles appear to be driven by cyclical variations in the output from the sun.
Can we change this? No. The effects of the slightly increased levels of CO2 is minuscule compared with the sun’s variation. Earth has been much colder with far higher levels of atmospheric CO2 than at present. The current level is approaching the lowermost level at which plant life can exist; much lower and there would certainly be fewer plants.
So why are we being hassled to reduce the use of fossil fuels and buy carbon credits? Follow the money. Many people are making huge fortunes in selling fear. Unfortunately they have the backing of politicians, who require money for their re-election funds, and scientists who require money for their research.
Instead of preparing for the loss of civilization’s dubious benefits due to global warming and sea level rise, perhaps preparing for the loss of these ‘benefits’ due to a much colder climate with lower sea levels having closed every port would be a more realistic scenario. Whatever the future holds, those that survive will be those best prepared to survive so that learning skills like gardening will be far more beneficial than learning economic theories and management practices in an industrialized society. It will be a return, or a progression towards, basics, with the incentive that in another 100,000 years or so we’ll be able to repeat the whole process once again. Perhaps it is the ultimate cleansing process undertaken by planet Earth for its own survival.