The truth is global warming is responsible for humans. Historically, both in the short term and in the long run, periods of elevated temperature have been associated with economic prosperity and population growth while cold periods are correlated to financial hardship and population contraction.
Prior to the latest global warming event that started more than 20,000 years, human beings existed in small family bands involved in hunting and gathering. With the retreat of the glaciers and the northward moving climate, these nomadic groups gradually developed intensive agriculture techniques as a precursor to civilization. A surplus of food allows for the division of labour and development of a social organization, because those not producing food can direct their efforts in other fields such as arts, industry, war, science or religion.
The earliest civilizations found so far are two 15,000-year-old now submerged metropolises found under the
After gradually rising from a paltry 1 million people 12,000 years ago, the world population reached a plateau between 200 and 900 AD. The advent of the Medieval Warm Period (MWP) in the 10th century started a phase of rapid population growth as surpluses of food were able to feed an ever-growing throng of people.
During this climatic anomaly, as with every warming event, the plant climatic zones moved northward. Grapes, which were previously grown only to the south in
Following on the heels of the MWP was the Little Ice Age (LIA), a period of temperature reversal characterized by the resurgence of European glaciers, the growth of Atlantic pack ice, and the destruction of crops and livestock as a result of shorter and unreliable growing seasons. Population crashes occurred periodically as the shortage of food caused widespread famine. Many who did not actually die of starvation, were so weakened from lack of food, they easily succumbed to a multitude of diseases caused by bacterial and viral infections.
The negative effects of the LIA were felt in other aspects of life as well. The colder weather caused massive storms that resulted in permanent massive losses of coastal area in the low-lying areas of
But the LIA was not all gloom and doom. The
The cold weather at this time is also attributed the superb sound of the Stradivarius violins. A modern theory proposes that during the cold weather, the growth rings on the trees grew closer together. The denser wood was responsible in part with the tonal qualities that make his musical instruments renowned.
In the shorter term, colder than normal weather aberrations are always associated with economic downturn. Probably the best example of this correlation occurred in is 1816 as a result of the 1815 eruption of
Besides the year without summer, 1915 and 1992 are two of the coldest years in
Although advances in technology and logistics of food distribution will reduce the impacts of future short-term temperature decreases, a long-term climate reversal however, could spell catastrophe for billions of people worldwide. Since most of the earth’s land area is located in the northern hemisphere, a progressively warmer climate will add millions of acres of arable land in