Causes and effects of the vietnam war essay

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Causes and effects of the vietnam war essay

Significantly reduces use of fossil fuels farm machines and transport of crops Makes use of abandoned or unused properties No weather related crop failures Offers the possibility of sustainability for urban centers Converts black and gray water to drinking water Adds energy back to the grid via methane generation Creates new urban employment opportunities Reduces the risk of infection from agents transmitted at the agricultural interface Returns farmland to nature, helping to restore ecosystem functions and services Controls vermin by using restaurant waste for methane generation No-cost restoration of ecosystems: The best reason to consider converting most food production to vertical farming is the promise of restoring ecosystem services and functions This belief stems, in part, from numerous anecdotal observations as to the current biological state of some territories that were once severely damaged either by now-extinct civilizations or over-farming, and, in part, from data derived from National Science Foundation-sponsored long-term ecological research program LTERbegun inon a wide variety of fragmented ecosystems purposely set aside subsequent to an extended period of encroachment The following case studies will serve to illustrate these points.

Deforestation of vast tracts of tropical rainforest throughout Mesoamerica took place over several thousand years It is estimated that there were as many as 50 million people living in this region, with some 17 million in Mexico, alone, when the conquistadores arrived in the s.

Re-forestation of deserted regions previously inhabited by pre-Colombian civilizations e. Regions that remained populated continued to suffer the ecological consequences of deforestation ibidbut in the abandoned areas the re-growth of the rainforests in some parts of Central America was so complete that by nearly all of the major ancient cities and monuments lying between Panama and southern Mexico had been canopied under them.

Today, archaeological expeditions routinely discover previously unknown settlements and the life and times of the peoples that lived there, but they are hard-won victories, accompanied by much difficulty in navigating the dense growth that protect these treasures of the past from open view.

New finds are now often aided by sophisticated remote sensing technologies Along the northern border of the Brazilian jungle live the Yanomami. These people have never been conquered by European colonialists.

Left to evolve on their own without interference from the outside, they have formed a series of loosely knit tribes that have developed shifting agricultural methods to live off the land, mostly by hunting bush meat and subsistence farming, without causing permanent damage to the environment in which they must live Their farming methods do not include fire as a forest clearing mechanism.

Instead, they cut down the trees, creating large open circles. Then they burn the trees to get enough minerals to fertilize the cleared zone. They farm the nutrient-poor soils for several years, raising sweet potatoes, plantains, sugar cane, and tobacco, and then they move on. By the time the Yanomami return to the same farming locale, some years later, the area has re-grown to its former state.

Without fire as a confounding factor, the Yanomami have achieved a rare a balance with the land in which crops are produced and forestland is repaired by a natural cycle that favors the survival of both sets of life forms.

Causes and effects of the vietnam war essay

Many other cultures living close to the land were not as fortunate as the Yanomami to have conceived and implemented sustainable relationships with their surroundings and have paid the ultimate price, that of extinction They attracted thousands of hopeful immigrants from the eastern United States and Europe to that area of the west.

Over the next 20 years, rainfall was above average and farming flourished. However, the next years saw some of the worst droughts in recorded history for that region. The result was a systematic erosion of millions of tons of topsoil The situation intensified from with increasingly devastating results The American Empire.

By Wade Frazier. Revised July Purpose and Disclaimer. Timeline. Introduction. The New World Before “Discovery,” and the First Contacts. We must remember that in time of war what is said on the enemy’s side of the front is always propaganda, and what is said on our side of the front is truth and righteousness, the cause of humanity and a crusade for peace.

Jan 20,  · It is now one hundred years since drugs were first banned -- and all through this long century of waging war on drugs, we have been told a story about addiction by .

The status of the territories regarding slavery had not been decided by the beginning of the Mexican War. Even before the war ended the issue of slavery in the region of the Mexican Cession was a hot-button political issue. Channing Peters English Cause or Effect Essay Effects of the Holocaust When many people look back at World War II, the first thing that comes to most peoples’ minds is the Holocaust.

This is known as one of the most ruthless and world changing events known to man. From Pre-Columbian to the New Millennium. The word history comes from the Greek word historía which means "to learn or know by inquiry." In the pieces that follow, we encourage you to probe, dispute, dig deeper — inquire.

History is not static.

Lifting the Veil