The Stratagem Philosophical Society
The home site of Common Sense
The Stratagem Philosophical Society provides a platform for the examination of the concept and philosophy of Common Sense
The Society.ís postal address is The Stratagem Philosophical Society BM Unifaculty London WC1N 3XX
The Internet address is -
http://www.stratagem.org.uk General enquiry email address is enquiries@stratagem.org.uk
the Stratagem Philosophical Society is part of the
Unifaculty Foundation

Theories on Climate Change vary from there is no such thing to the Earth will become devastated in a few years and that is because of Manís actions. The concept of Climate Change did not start out as that but was originally styled as Global Warming. In amongst the rather wide spectrum of theories some people have abandoned the scientific method in favour either of making our Climate into a new religion or into a political movement and for some of them into both.

There has been no global warming recorded since 1990. That might simply reflect the fact that some of the gauges used to measure temperatures were situated in locations which gave false reading such as at the end of runways and the like. They have been moved.

The Medieval Warm Period (MWP), Medieval Climate Optimum, or Medieval Climatic Anomaly was a time of warm climate in the North Atlantic region which may also have been related to other climate events around the world during that time, including China and other areas, lasting from about AD 950 to 1250. It was followed by a cooler period in the North Atlantic termed the Little Ice Age.

Medieval Warm Period - 9th to 13th Centuries

Norse seafaring and colonization around the North Atlantic at the end of the 9th century indicated that regional North Atlantic climate was warmer during medieval times than during the cooler "Little Ice Age" of the 15th - 19th centuries. As paleoclimatic records have become more numerous, it has become apparent that "Medieval Warm Period" or "Medieval Optimum" temperatures were warmer over the Northern Hemisphere than during the subsequent "Little Ice Age", and also comparable to temperatures during the early 20th century. The regional patterns and the magnitude of this warmth remain an area of active research because the data become sparse going back in time prior to the last four centuries.

The Roman Warm Period or the Roman climatic optimum has been proposed as a period of unusually warm weather in Europe and the North Atlantic which ran from approximately 250 BC to 400 AD. Cooling at the end of this period in south west Florida may have been due to a reduction in solar radiation reaching the Earth, which may have triggered a change in atmospheric circulation patterns.

Theophrastus (371 Ė c. 287 BC) wrote that date trees could grow in Greece if planted, but could not set fruit there. This is the same situation as today, and suggests that southern Aegean mean summer temperatures in the fourth and fifth centuries BC were within a degree of modern temperatures. This and other literary fragments from the time confirm that the Greek climate during that period was basically the same as it was around 2000 AD. Dendrochronological evidence from wood found at the Parthenon shows variability of climate in the fifth century BC resembling the modern pattern of variation. Tree rings from Italy in the late third century BC indicate a period of mild conditions in the area at the time that Hannibal crossed the Alps with elephants.

Around 900AD The Chinese Imperial Navy sent a flotilla north to the Arctic region. On their return they reported that they had crossed the Arctic Sea without encountering any ice.

Were we wondering what happened to the polar bears with there being no ice at the North pole, we know that they survived several earlier periods of global warming, ice ages and mini-ice ages.

The filming of polar bears today clinging to melting ice followed by a request for three pounds a month to save them, are all shot at the height of that Arctic season when much ice melts. It is called the summer.

Causes of Global Warming and Climate change

Because everything affects everything else humans may be responsible for global warming, even if only in small part.

However, it may be useful to allow ourselves to apply Common Sense in understanding what is going on and our part in that. We humans may not be so guilty of affecting our weather as some would have us think.

Let us leave on one side for now why the planet Mars which once enjoyed an environment similar to ours lost its pleasant environment. It was, self-evidently not a result of automobiles, coal fire burners or any animal activities. We will return to Mars in another report.

Meanwhile, the Icelandic volcano above is releasing all sorts of so-called greenhouse gases into the atmosphere. These emissions are measurable.

Those measurements provide an interesting insight into the proposition that humans affect the weather and global warming due to their production of greenhouse gases. For instance, one volcanic eruption on just one day emits into our atmosphere the equivalent in greenhouses gases and other pollutants to all of the human activity from industry and other activities. There is more than one volcano in the world. In the American state of Alaska, presently there are 81 listed volcanoes. Around the world are many more famous ones. Beneath the oceans thousands of them bubble away, their gases taking almost an hour to reach the surface into the atmosphere.

That is not to suggest that we humans have no effect on our atmosphere nor that volcanic eruptions are the sole cause. Instead, common sense would indicate that global warming may have other causes and that by blaming ourselves or allowing ourselves to be blamed by people have a non-common sense agenda risks our sinking Mankind into mindless and avoidable poverty

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