Influence Of Geography: The Little Ice Age

Previous climate change predictions have provided scientists, archaeologist and ecologists with information about the past and future of humans. These indications are backed up by scientific research based off of the physics of the Earth’s atmosphere, ocean, land and ice. In addition, many researchers have recently turned their focus to past civilizations and their downfall. With information from Mark Kinver’s “Roman Rise and Fall ‘Recorded in Trees’” studies show that from the demise of the Argaric society to the fall of the Mayan, and Ancient Roman Empire, climate change has played a key role in regards to civilizations collapse and nuclear annihilation.

We all know that atmosphere is continually evolving. We have had ice ages and hotter periods when gators were found in Spitzbergen. Ice ages have happened in a hundred thousand year cycles for the last 700 thousand years. There also have been time periods that seemed to have been hotter than the present in spite of CO2 levels being lower than they are currently. Overall what I am saying is that we have had the medieval warm period and the little ice age. Because of these evolutions there has been different effects on the earth.

The little ice age gave us a glimpse as to how climate change can affect our society. This is especially important today as we stand on the brink of another environmental catastrophe. The acceleration of greenhouse gas output has irrevocably changed how mankind affects the environment. The lessons that we can learn from studying the little ice age may lead us to understanding what we can do stop this process.

First of all, the environmentalists disregard the fact that there has been several global warming and cooling periods throughout the history. Willie Soon, a professor at the Harvard-Smithsonian Center for Astrophysics, confirmed that from 800 to 1300 A.D. the average temperatures of the world were 2 to 4 degrees or more higher than that of the 20th century, which is referred to as the Medieval Warm Period (Anderson, par.16). This warming trend was detected in many other parts of the world at that time, and the history proves that it brought wealth rather than disaster. During this period, Europe flourished and was awoken by Renaissance culture.“Olives grew in 13th –century Germany, where St. Albert the Great also noted abundant fig and pomegranate groves in Cologne and the Rhine valley-places too cold for those crops today” (16). Following the Medieval Warm Period, the temperature plummeted 3 to 5 degrees, which is 2 degrees colder than our climate today, lasting until 1900. Since 1900, the world has warmed up about 1 degree (18). One of the other natural causes is the activities of volcanoes. Volcanoes release a huge amount of sulfuric acid, which is believed to contribute to global warming.

Earth has experienced many episodes of dramatic climate changes with different periods in earth history. There have been periods during which the entire planet has been covered in ice and at another time it has been scorchingly hot and dry. In this regards, earth has experienced at least three major periods of long- term frigid climate and ice ages interspersed with periods of warm climate. The last glacial period which current glaciers are the result of it, occurring during the last years of Pleistocene, from approximately 110,000 to 10,000 years age (Clayton, 1997). Indeed, glaciers present sensitive indicators of climate change and global warming and by estimating and monitoring the dynamic evolution of these ice masses, several

Firstly, the passage counts distortion in Gulf Steam as a main reason for Little Ice Age advent. However, lecture states all the alternations have merely effected north part of America and Europe and not all the parts of this terrestrial globe namely South Africa and New Zealand; were all have been unaffected

The Great Warming is a book written by Brian Fagan that encompasses the environment and history pertaining to most of the human race between A.D. 800 and 1300. Not only does the book give a new dimension to world history by looking at climate history, but it also provides the reader with an ominous warning of the impact that climate change may have on the human race in the future. Fagan references many civilizations in the book that were affected by the rise in surface temperatures. He goes in depth with them individually to show just how worldwide this climate change was, how each civilization adapted or failed to adapt, and who the winners and losers were during this medieval warming period.

Throughout history climates have drastically changed. There have been shifts from warm climates to the Ice Ages (Cunningham & Cunningham, 2009, p.204). Evidence suggests there have been at least a dozen abrupt climate changes throughout the history of the earth. There are a few suspected reasons for these past climate changes. One reason may be that asteroids hitting the earth and volcanic eruptions caused some of them. A further assumption is that 22-year solar magnetic cycles and 11-year sunspot cycles played a part in the changes. A further possibility is that a regular shifting in the angle of the moon orbiting earth causing changing tides and atmospheric circulation affects the global climate (Cunningham & Cunningham, 2009,

Medieval Warm Period and The Little Ice Age The Medieval Warm Period and The Little Ice Age share a few common denominators. They were both caused partly by the ocean currents changing, and both of these events occurred in the northern hemisphere. The Little Ice Age was considered to be “harsh”, having the winters last for long a period of times, and the summers cool and wet, whereas the Medieval Warm Period was considered to be a more difficult time to describe, considering that there has not been much research done about it.

Europe had experienced a general cooling of the climate between years 1150 and 1460 and a very cold climate between 1560 and 1850. This event came to be known as the “Little Ice Age.” This cold weather had impact on agriculture, health, economics, emigration, and art and literature . The term “Little Ice Age” was named by Francois Matthes in 1939 to describe the most destructive climate drop in Europe. This ice age was consisted of mountain glaciers which brought temperatures as low as 2 degrees Fahrenheit. Numerous people got sick and some were even killed and starved to death because of a famine. Farms and villages were lost due to the cold weather. It is unknown on what caused this “Little Ice Age.” We do know that this event impacted

The Great Warming by Brian Fagan claims that environmental changes (most commonly prolonged droughts, El Niños, and La Niñas during the Medieval Warm Period) affect human civilization, including human’s trading abilities, overall movement, and quality of life. He examines the world’s ancient climate warming, known as the Medieval Warming, between the 10th and the 15th centuries, also mentioning the preceding and succeeding centuries. Fagan gathers his research using studies conducted by archaeologists, historians, and paleoclimatologists. Throughout his book, he refers to direct methods to study climate change, such as instrument records and historical documents, and indirect methods, such as ice, deep sea cores, coral records, and tree rings. Fagan digs into the rise and fall of multiple civilizations around the world as an effect of The Medieval Warming Period. As well as examining civilizations across the world, he attempts to connect the climate change patterns during The Medieval Warming Period to the current global warming faced today. The Great Warming discusses positive and negative connections between climate change and human civilizations across the world, starting in Europe and working its way into Asia, North America, South America, Africa, and even covering the arctic ice caps; however, throughout the book, Fagan has a hard time connecting his various ideas back to one main topic and can easily stray from his point about the effects of climate change.

It has been observed through various researches that in the last century, average temperatures across the globe increased by over 1.3°F with an increase of more than two times in the Arctic. (Bates, Kundzewicz, Wu, & Palutikof, June 2008). The results of climate change can also be seen in changing precipitation patterns, increases in ocean temperatures, changes in the sea level, and acidity and melting of glaciers and sea ice (USEPA, 2014).

First, the reading states that the cooling may have been caused by distrupting of ocean currents. The professor opposes this point by saying that the disrupting of ocean currents can cause cooling effects in Europe and North America only, but the Little Ice Age also affected Soth Africa, so the disrupting of ocean currents can't explain why South American was affected by the Little Ice Age.

Glaciers are one of the most fundamental phenomenon on the planet, and much of their purpose and impact on earth has been well documented and published. Ice sheets, Ice Caps and Glaciers trap nearly 90% of the world's fresh water, and are replenished by snowfall each year. Their existence on this planet dates back 650,000,000 years and yet they are always moving, always shifting and always melting. Before, human existence and even during the brief era of humans, ice dominated all of the earth's landmass and have regulated, created and altered many of the landscapes around the world.

The Medieval Warm Period (MWP) refers to a relatively warm period lasting from about the 10th to the 14th century.2 However, the initial evidence for the MWP was largely based on data3 gathered from Europe, and more recent analyses indicate that the MWP was not a global phenomenon. A number of reconstructions of millennium-scale global temperatures have indicated that the maximum globally averaged temperature during the MWP was not as extreme as present-day temperatures and that the warming was regional rather than global. Perhaps the most well-known of these is that of Michael Mann and colleagues (Nature, 392, 1998, pg. 779). Their reconstruction produced the so-called “hockey stick” graphic that contributed to this conclusion in the 2001 assessment of the Intergovernmental Panel on Climate Change: “The…'Medieval Warm Period' appear(s) to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries." The accuracy of the “hockey stick” graphic was widely discussed in the press when the Mann et al. methodology was criticized by McIntyre and McKitrick (Geophys. Res. Lettr, 32, 2005, pg. L03710). Less attention was given to subsequent studies, such as that of Moberg and colleagues (Nature, 433, 2005, pg. 613) and Osborn and Briffa (Science, 311, 2006, pg. 841) that were based on different, independent methodologies but reached conclusions similar to Mann. Observations of melting high altitude glaciers are