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Field Notes From A Catastrophe, Man, Nature And Climate Change By Elizabeth Kolbert

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Global warming is the most controversial subject that I have studied at Canada College, and I think that the real controversy concerning this issue is whether or not human beings are to blame for it.
I enjoyed reading the book that was assigned, Field Notes from a Catastrophe, Man, Nature and Climate Change, by Elizabeth Kolbert. This source contained extensive research and the following statements in the preface are its thesis; this is a book about watching the world change. Humans aren’t the first species to alter the atmosphere; that distinction belongs to early bacteria, which, some two billion years ago, invented photosynthesis. But we are the first species to be in a position to understand what we are doing.
Chapter 1 titled, Shishmaref, …show more content…

As the climate warms, there is a good chance that these gases will be released from the permafrost into the atmosphere. This release of greenhouse gases causes the Earth’s temperature to rise. Earth’s rising temperature melts more permafrost creating open water. The more open water that’s exposed to sunlight, the more solar energy goes into heating the ocean. Heating the ocean then melts more permafrost causing sea levels to rise. The conclusion is that rising sea levels will result in the loss of land for people, like the Inupiats to inhabit, as well as the rest of mankind.
In Part 2 of the book Field Notes from a Catastrophe, Man, Nature and Climate Change, author Elizabeth Kolbert presents global warming from the perspective that we can learn from the past.
Chapter 5, titled The Curse of Akkad, begins by describing how previous, naturally occurring, climate changes, brought about droughts that caused the demise and disappearance of the Akkadian empire, Maya, Tiwanaku, and Egyptian civilizations.
According to this Chapter, the cause of these climate changes came from forcing. Forcing is any ongoing process or discrete event that alters the energy of the system. Examples of natural forcings include volcanic eruptions, periodic shifts in the Earths’s orbit and changes in the sun’s …show more content…

A major drought occurred about the time the Maya began to disappear. And at the time of their collapse, the Maya had cut down most of the trees across large swaths of the land to clear fields for growing corn to feed their massive population. They also cut trees for firewood and for making building materials. They had to burn 20 trees to heat the limestone for making just 1 square meter of the lime plaster they used to build their tremendous temples, reservoirs, and monuments, explained veteran archeologist Tom Sever. Tom Sever and his team used computer simulations to reconstruct how the deforestation could have played a role in worsening the drought. They isolated the effects of deforestation using a pair of proven computer climate models: the PSU/NCAR mesoscale atmospheric circulation model, known as MM5, and the Community Climate System Model, or CCSM. They modeled the worst and best case scenarios: 100 percent deforestation in the Maya area and no deforestation, says Sever. The results were eye opening. Loss of all the trees caused a 3-5 degree rise in temperature and a 20-30 percent decrease in rainfall. Server proposed that increases in temperature and decreases in rainfall brought on by localized deforestation

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