Is global warming headed for a new high?
A recent paper published in Geophysical Research Letters, but summarized in The Guardian, grapples with some of the ideas floating around related to global warming. The hottest year on record was 1998 and because it has been more than a decade since then, with somewhat cooler temperatures prevailing, opponents of global climate change have argued that the forces for drastic change have been over-rated. Some even want to argue that the planet is cooling, not warming. In the new article, the authors point out that we have enjoyed a period of comparatively low temperatures because sun spot activity, which showers us with additional photons, has been in its eleven year quiet cycle. But during that eleven year pause, carbon dioxide emissions into the atmosphere have increased more than previous projections anticipated, so the resumption of sun spot activity is likely to usher in new forces for increased global temperatures, such that we could erase the 1998 record. This paper attempts to deal with several forces at work, not all of them man made. However, arguments are presented that El Nino, an event where the Pacific Ocean warms because of a collapse of the normal easterly trade winds off the coast of Ecuador, used to be on a ten to 11 year cycle, but in more modern times, that cycle has been reduced to four years. The basic argument offered by this new research, suggests that, with the resumption of sun spot activity, we will see a new wave of heat and weather induced destruction around the globe in the next few years. As the quality of our atmospheric air improves, with additional removal of ash and soot pollution (some of which comes from dirty Chinese pollution sources), we will see further intensification of global temperatures because these pollutants are blocking out some of the sun, like a mild pair of sunglasses.
If you want to get a nice graphical explanation of the forces behind the El Nino southern oscillation weather pattern that impacts on our own weather and has global influences, with alternate warm (hot) and cool weather cycling, The Guardian has a nice, comprehensible visual explaining the essence of El Nino. Many of the global warming or cooling projections (such as Europe’s winters getting colder) are based on modeling results which give altered trade wind patterns due to polar warming conditions and these polar changes seem to be happening on a much faster scale, indicating that our models are too simple to give us good insight into what’s going on. We need much better, more sophisticated models and maybe by the time we get them, our future will have arrived.
RFM
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