{"id":11051,"date":"2022-02-11T13:00:21","date_gmt":"2022-02-11T19:00:21","guid":{"rendered":"https:\/\/bestofswla.com\/?p=11051"},"modified":"2022-02-11T13:25:02","modified_gmt":"2022-02-11T19:25:02","slug":"climate-change-a-historical-perspective","status":"publish","type":"post","link":"https:\/\/bestofswla.com\/2022\/02\/11\/climate-change-a-historical-perspective\/","title":{"rendered":"Climate Change: A Historical Perspective"},"content":{"rendered":"

The evidence is clear that over the last 150 years, the earth\u2019s climate has become warmer. This has led environmentalists to demand governments take action to halt global warming and \u201csave the planet.\u201d But is climate change really a threat to the planet? \u00a0<\/span><\/p>\n

\"\"<\/a>Data gathered from tree rings, glacial ice cores, fossils and ocean debris indicate the earth\u2019s climate has gone through many cycles of warming and cooling in its history, including periods when the earth was ice-free. The current period of glaciation (yes, the earth is still in an \u201cice age\u201d) peaked 20,000 years ago when the average temperature of the earth was about 15\u00b0F colder than today. The timing of these glacial periods is believed to be governed by predictable cyclical changes in the earth\u2019s orbit that affect the amount of sunlight reaching various parts of earth\u2019s surface, shifts in the tilt of earth\u2019s axis, the wobbling motion of earth\u2019s axis, and shifts in the tectonic plates.\u00a0 <\/span>The current ice age is believed to have begun when the land bridge between North and South America formed, ending the exchange of tropical water between the Atlantic and Pacific Oceans, significantly cooling the oceans.<\/p>\n

\"\"<\/a>Within these mega-glacial cycles, the earth\u2019s climate frequently fluctuates, sometimes quite suddenly and often with a profound impact on human activity. For example, many historians consider the year 536 to be the worst year in human history. It began with a mysterious fog that plunged Europe, the Middle East, and parts of Asia into darkness when, as the Byzantine historian Procopius wrote, \u201cthe sun gave forth its light without brightness, like the moon, during the whole year.\u201d\u00a0 <\/span>Thus began the coldest decade in the past 2,300 years when snow fell in summer in China, crops failed, and people starved. This set off mass migrations and, in 541, the bubonic plague broke out in Egypt in what is known as the Plague of Justinian. It spread rapidly, wiping out one-third to one-half of the population of the eastern Roman Empire and hastening its collapse (Science Magazine, Ann Gibbons, 2018).<\/p>\n

Until recently, historians conjectured that this period was called the \u201cDark Age\u201d in contrast to the \u201cAge of Enlightenment\u201d that followed it. But recent research by Michael McCormick, professor of medieval history at Harvard University, and glaciologist Paul Mayewski, has linked the Dark Age to a massive volcanic eruption in Iceland in early 536 that spewed an enormous amount of ash across much of the globe, creating a fog that cast the world into darkness and blocked the rays of the sun from warming the earth (the opposite of today\u2019s \u201cgreenhouse\u201d effect). Thus, the \u201cDark Age\u201d was literally dark.<\/p>\n

We recently experienced something similar, albeit on a much smaller scale, when Mount Pinatubo erupted in the Philippines in 1991 and spewed an enormous amount of ash into the stratosphere. The result was a \u201cvolcanic winter\u201d in which the temperature in the northern hemisphere dropped an average of 1.1 degrees while the temperature in the stratosphere rose several degrees due to the absorption of radiation by the aerosol.\u00a0<\/span><\/p>\n

So, is today\u2019s global warming driven by industrialization a threat to the planet? Some like to imagine that prior to the industrial age and its factories spewing smoke, the world was like Thoreau\u2019s Walden Pond: pure, pristine and in tune with nature. But the pre-industrial world was not like that. Except for the privileged noble few, it was a terrible, filthy place by modern standards. City streets were full of sewage and animal dung, starvation and disease were common, childbirth was a life-threatening experience for mothers and their infants, and work was long and tedious with meager reward. Industrialization is the reason the earth can support many more people than ever before at a standard of living earlier ages could only imagine.<\/p>\n

Rather than trying to unite the governments of the world to change the climate and save the planet, perhaps we should be encouraging people to adapt to the earth\u2019s changing climate, whatever its cause. Human beings have been very successful on planet earth, partly because of our ability to adapt to climate change. While other creatures must evolve to adapt, human beings use their creative brains to adapt to changes. We adapt every day to colder temperatures at night and warmer temperatures during the day as the earth spins on its axis; we adapt every year to the changing seasons as the earth rotates around the sun; and over the centuries we have migrated and changed our ways of doing things as the climate has changed due to volcanic activity and other forces of nature.<\/p>\n

Is there any reason to believe that today\u2019s climate is the ideal climate for human existence? Is there any reason to believe the governments of the world, which are most known for waging war and have rarely succeeded at ameliorating human suffering, will somehow work together to stabilize our climate? Is there any reason to believe that the collective effort of governments can overcome the powerful forces of nature that have driven most of our climate change throughout history?\u00a0<\/span><\/p>\n

Climate change is not a hoax: the glaciers are melting, the oceans are rising, and weather patterns are changing. But rather than running around like Chicken Little calling on governments to change this, we should rely on market forces to unleash human ingenuity and creativity to adapt to these changes.<\/p>\n","protected":false},"excerpt":{"rendered":"

The evidence is clear that over the last 150 years, the earth\u2019s climate has become warmer. This has led environmentalists to demand governments take action to halt global warming and \u201csave the planet.\u201d But is climate change really a threat to the planet? \u00a0 Data gathered from tree rings, glacial ice cores, fossils and ocean [&hellip<\/p>\n","protected":false},"author":19,"featured_media":1498,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[75],"tags":[1878,1817,134],"yoast_head":"\nClimate Change: A Historical Perspective - BestOfSwla<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bestofswla.com\/2022\/02\/11\/climate-change-a-historical-perspective\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Climate Change: A Historical Perspective - BestOfSwla\" \/>\n<meta property=\"og:description\" content=\"The evidence is clear that over the last 150 years, the earth\u2019s climate has become warmer. 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