Human Impact on the Environment – Problems caused by population growth

In about 1830 the human population reached whiz billion, there argon now slightlywhere around six billion people on the satellite today and that figure is growing at a very high and very rapid rate. recent populations were controlled by disease, war and famine but now beca purpose of engineering and modern medicine. The environment around us has been built to support these growing numbers but this development is having a huge effect on the worlds ecosystems.Human populations clear other space and habitats of other species to shape way for their own. This ignorance has killed many species to extinction and begrime the environment this has endangered our survival and the survival of other species at risk.Read this Ch. 22 Respiratory constitutionHowever, in natural ecosystems factors atomic number 18 limiting whereas human ecosystems are un resembling as we shed the technology to maximise resources and find new ones when existing ones run out. The artificial satellite obviously stinkpot only manipulate a certain number of people, most species never reach their maximum numbers but they have a peak, then the numbers start to decline.Activities that have changed the landscapeIndustrial and internal waste has to be disposed of, and as the population is increasing the waste is becoming more and more difficult to birth rid of. There are a lot of things that ca design pollution in varying rate on a big scale oil spill to a normal deodorant can which mathematical functions cfcs. Here is a table that shows the pollutant and its effect on humans and the environment.PollutantEffects on humans and the environment. channelizeSmokeMakes breathing difficult.Sulphur DioxideCauses acid rain.OzoneDamages leaves.CFCsDamages ozone layer.Carbon DioxideIncreases the Greenhouse Effect. wet cloacaEutrophication.FertilisersEutrophication.Acid RainMakes soils, lakes and rivers acidic.Oil SpillsKill fish.Toxic Chemicals e.g. mercuryKill fish and other aquatic life.LandSolid waste disposal at landfill sitesMethane causes explosions and increases the Greenhouse Effect.Mining waste e.g. LeadWater run-off poisons plants and animals.Heavy metals kill most plants and animals.The defilement of the WaterThere are a number of different ways and processes of water supply pollution the main ones are waste disposal, organic pollution and eutrophication. Waste disposal is the domestic and industrial waste which is treated in sewage plants to remove impurities. The problem is that some of this waste is existence disposed in many rivers and canals and polluting them heavily. This has destroyed many freshwater ecosystems like the Great Lakes of North America and split of the Norfolk Broads. Organic pollution is where domestic sewage is disposed in rivers and canals and the organic content in the sewage is a food source for bacteria and fungi. These organisms also take the dissolved oxygen in the water so that fish and other aquatic animals die out. Eutrophication i s when the nitrate and phosphate levels are high this encourages the growing of algae. These algae can cause a lot of damage to the water ecosystem.* Algae grow chop-chop and give an algal bloom over the surface of the water.* Many blue-green algae produce toxins which kill some plants and animals.* Small animals that feed on algae do not multiply fast enough to finish the increase in the algae.* Algae block out the light for the rooted plants growing on beds of lakes and they die. This discredits the aggregate of oxygen.* The algal population crashed due to competition for resources. The algae are then decomposed by bacteria which use the oxygen in the water.* This lack of oxygen kills many invertebrates and fish.All this is the process of eutrophication.The pollution of the automated teller machinePollution is a term used to describe the presence of an unwanted substance. Although air contains lots of microscopic particles, like volcanic dust and tiny sand grains from deser ts, this pollution is natural in origin. Man-made pollution of the atmosphere however, is now make a lot of concern. Most of this air pollution comes from the burning of coal, oil and spatter the fossil fuels in power stations, factories and homes, and petrol and diesel in cars and other road vehicles. We need postcode and electricity to keep us warm and to cook our food, but unfortunately we do not make enough from other non-polluting sources.Burning fossil fuels releases greenhouse gases into the air. This may be changing the climate and causing global warming. Other pollutants like sulphur dioxide and nitrogen oxides are also given off. This can reduce the quality of air which we breathe, leading to health problems, and can cause acid rain. globose WarmingGlobal air temperatures as measured by land-based weather stations show an increase of about 0.45 degrees Celsius over the past century. These may be mistakes in data or climatic variation.Satellite data advert a slight c ooling in the climate in the last 18 years. These satellites use innovational technology and are not subject to the heat island effect around major cities that alters ground-based thermometers.Projections of future climate changes are uncertain. Although some electronic computer models predict warming in the next century, these models are very limited. The effects of cloud formations, precipitation, the role of the oceans, or the sun, are still not well known and often inadequately represented in the climate models although all play a major role in ascertain our climate. Scientists who work on these models are quick to point out that they are far from perfect representations of reality, and are probably not advanced enough for direct use in policy implementation. Interestingly, as the computer climate models have become more sophisticated in recent years, the predicted increase in temperature has been lowered.However, 98% of total global greenhouse gas emissions are natural (most ly water vapour) and only 2% are from man-made sources.Sustained DevelopmentSustainable development is where a population can make developments and improvements to their domain of a function or their needs without causing harm to the environment. Sustainable development is all about a greener planet in both developed and developing countries by not polluting the environment and being more get-up-and-go friendly. Sustainable development is* Social progress which recognises the needs of everyone* Effective protection of the environment* Prudent use of natural resourcesSustained development can be achieved by using less(prenominal) fossil fuels and researching into environmentally friendly sources of energy like solar and geothermic sources. Be less wasteful so that we use fewer resources so that they are prolonged and regenerate, find more effective ways of disposing of waste and producing less waste in the first place.