Personal Biostatement Essay Example | Topics and Well Written Essays - 1000 words

Personal Biostatement - Essay display case at that place is a risk of water shortages in the near future, and many sources of water are polluted. generosity may as well be close to running out of oil and other chief(prenominal) materials.There is a limit to the numbers of people that can be supported by the earth. A broad(prenominal)er(prenominal) population requires more land to be used for food, and more chemical fertilizers and intensive cultivation to be used on existing verdant land. If a high standard of living is maintained, a high population will also require more energy and resource use and it will unremarkably create more pollution and waste. The knowledge base population was six billion in 2000, and it is projected to stand out to almost nine billion by the year 2040. In 10,000 B.C. the maximum estimated world population was rough ten million (U.S. Census Bureau-International Database, 2007). There are currently signs that the current population is reaching the limits of the carrying efficiency of the world. There are constant famines in some parts of Africa. Rising oil prices may place an impending oil shortage. Consumption of oil has risen throughout the world and there have a bun in the oven been a few(prenominal) significant new discoveries. De qualityation is a major riddle as poor countries cut level their forests to provide new land for agriculture. There are large dead zones in some coastal areas due to pollution. Damage to the environment will eventually lower the carrying capacity of the earth as agricultural yields will fall if surface soil is eliminated because of the erosion that leads with constant monocropping and the destruction of the forests. Overfishing can cause fish stocks to collapse, and they may not recover for a long period of time even if fishing is temporarily halted. If the world population outgrows the carrying capacity of the earth, the results could be a rapid population collapse as wars, famines, and major epidemics occur in many places at once. There is evidence that the society on Easter Island collapsed due to overpopulation and the overconsumption of resources. patently the islanders were greeted with a lush tropical paradise when they first discovered it. It must have seemed inexhaustable. The trees were cut for pound up for housing, wood for fires, and eventually for the rollers and lever-like devices used to move and erect the moai (Wassmann, 1996). Eventually, the clear-cutting caused erosion and the permanent loss of the original forest on the island. The island could no longer support its population, and there was constant warfare and cannibalism. The society collapsed, and the population of the island is estimated to have dwindled from about 7,000-9,000 to about 750.Overdevelopment has damaged the environment in many places. Human needs and wants should not be the only thing that determines where new housing developments and cities are constructed, as development ca n cause important species to lose land in their habitats and it can cause other problems, such as the loss of topsoil and pollution. The loss of some species in a region can cause other species to either clog up off or over-reproduce. Other species could enter the region, and they could become pest species. Land in some types of developments also becomes eroded easily. Highways and developments also create large amounts of pollution and waste.Pollution has always been a major problem throughout history. The industrial revolution added many new types of pollution to the environment