Essay exam Example | Topics and Well Written Essays - 1250 words - 1

Exam - Essay Example There has been a subsequent increase in radioactive waste following the increase in the production of nuclear power. When inhaled, radioactive elements are lethal and can kill within a short time. Nuclear waste build up can be prevented by recycling and storing it geologically. Nuclear waste differs with radioactivity level from high, through intermediate to low level. High level nuclear waste is mostly liquid, and although it is small in terms of volume, it is the most dangerous. It results when radioactive spent fuel is reprocessed to separate useful fuel that can be recycled from waste. High-level nuclear waste could be disposed of in deep geological mines. Meanwhile, before a geological mine or a suitable disposal site can be found, high-level nuclear waste can be vitrified and stored in stainless steel canisters. Spent fuel should be dissolved in nitric acid and to give off uranium and plutonium (Hill 30). Intermediate waste is mixed with cement and stored awaiting disposal. Glo bal Climate Change Scientists have found that there is a gradual global climate change as seen in the increase, in world temperatures, shrinking of glaciers, early plant flowering, early breaking up of ice and shifts in plant and animal ranges. Severe droughts, increased tropical storms and rampant wildfires are among other projected effects of global climate change. There has been undisputed evidence that the global sea level rose to seventeen centimeters in the 20th century. It is particularly discomforting to learn that this could have doubled in the last decade. Since around 1880, global temperatures have been rising gradually. The period between 1981 and 2001 was marked as warmer than the previous decades. The past twelve years have recorded the highest temperatures as compared to previous years. Although there has been a significant decline in the solar output in the early 2000s, surface temperatures have not ceased to increase. Scientists have established that oceans have war med up to 0.302 degrees Fahrenheit from 1969. There has been a loss in mass in the Antarctic and Greenland ice sheets. Between 2002 and 2005, Antarctic lost about one-hundred and fifty-two cubic kilometers of ice while Greenland lost up to two hundred and fifty cubic kilometers of ice between 2002 and 2006. The ice on Arctic sea has greatly declined in the past few decades. Glaciers in Alps and Rockies among other places in the world have been noted to have retreated significantly. Places like the United States have witnessed increased temperatures instances and relatively low temperature instances since 1950. Unusually heavy rainfall instances have been recorded in different parts of the world. Studies have revealed that acidity of surface ocean water has gone up to about 30% since the Industrial Revolution. Carbon dioxide that has been released by people in their increased population has been absorbed into water bodies. Global climate change can be arrested by adopting behaviors t hat promote a healthy

Daniel Richter's Facing East from Indian Country. Book Report Essay

Daniel Richter's Facing East from Indian Country. Book Report - Essay Example In the course of this era, some of the aboriginal groups changed to try to fit in the American society, and although Indians changed, they did not forget their language and their traditions. This essay will discuss how initial contacts involving the Europeans and Native Americans occurred in earlier days. Christopher Columbus, an American author, was born in 1451 and died in 1506. Columbus reputation has for long had controversies, with the fact that his achievement in navigation cannot be alienated from violence that represent the European contribution to the new world. Columbus discovery of America led to destruction of most of the native groups found in America at the time of discovery. Columbus arrived in America while trying to explore the Asian markets, north Americas native people, populated most part of the continent. The connecting of the eastern and western regions marked the foundation of an organized history, a process known as Columbian exchange. This involved a substitu tion of goods, for example, crops across the Atlantic Ocean. This distorted the economies of the world; Native Americans approved animals such as, horses and cattle. Foods such as, tomatoes, potatoes, and corn were brought in by these populations and have so far been embraced worldwide. Jacques Cartier came from the French court to explore North America, and in Chaleur Bay, he encountered aboriginal people who were the Micmac people. Their meeting was the first time the French and the natives traded furs. At first, the aboriginal people were friendly, but they changed their attitude and became hostile when they realized that the foreigners had come to interfere with their existence. Cartier tried to establish peace among the people since his arrival. Prior to the coming of Christopher Columbus, it was thought that the aboriginal people did not have any history. In contrast, these people had developed a culture, which was not written; they displayed their culture through song, dance and other artistic performances. Though Columbus claimed to have discovered America, many inhabitants had already settled in for many years. Columbus’s arrival marked an era of contact Europeans and Native Americans that went on for an unusually long time. Captain John smith’s interactions with Indians were because of his relationships and dealings with their most influential leader, Powhatan. He had earlier been captured by Powhatan; this led to the progress of their relationship. They formed an alliance in which smith would provide the colonists with food, this later developed to hostility of the highest degree. By the time John Smith, left Virginia there was a conflict between the English and Powhatan. As compared to other Europeans at that time, John Smith seemed to be open-minded about the natives, referred to them as social, and referred to their leaders as kings. John smith, was welcoming and persuasive, he even tried to integrate into the communities he visited , learned their language. His ability to persuade changed the attitude of Powhatan towards him. In his speech, Powhatan pleads with John Smith for peace, his words indicate anxiety and doubt surrounding the arrival of white settlers, and foretell conflict between the Native Americans, and Europeans that would have influence on the history of both groups. He wants the uneasiness and