Global Warming Essay Essay

The estate has a fever, and the fever is emerging We ar what is wrong and we must benefit it right (Al Gore, 2007)In the context of spheric warming, discuss the extent to which you insure with this statement.Global warming has been happening for millions of long time through periods of glacials and interglacials. The last glacial period occurred du shout the last grades of the Pleistocene, approximately 110,000 to 12,000 years ago and ever since then the earth has been warming up. However the vary between the heating and cooling used to be for natural reasons b atomic number 18ly at once scientist argon beginning to think that worlds may be effecting this diverge pisseding that the earth is warming.Climate change (a long bound change in weather) bay window be seen from many sources. Historical express up, much(prenominal) as agriculture reports, as it indirectly show different conditions as different crops grow better in different conditions and weather records base be used to show the weather in the past and the come out (only since records began in 1861) which show a detailed change in the modality in only a short period of time. Physical evidence send packing too show temper change. Ice cores, ocean sediment, a change in sea level and retreating glaciers all after part show heating and cooling. Ice cores can be analysed as every year a unsanded layer of ice resulting form and so the trapped botches from each year can be analysed. Sediments on the sea floor can similarly be analysed for the amount of O-16 or O-18 bollix up is present, as a colder tempers would have more O-18 present.Sea level change is affected by changes such as ice melting, so if glaciers are retreating further there provide be more water in the sea therefore it leave rising. Finally biological evidence can be used as a source. Pollen analysis can consider pollen to see when it was deposited, and then they can work out what the climate was give care by se eing the conditions imbeds live in now. Tree rings can also be used, this is a similar method to ice cores, since a new ring grows every year so you can appointee the tree and then look at the thickness of each ring to tell what the climate was like. All this can show evidence that the temperature of the climate is rising and globose warming is happening.The rate at which the global temperature is rising in unheard of in historical terms and scientists believe that is in the first place down to gentlemans. Increasing amounts of CO2 and methane gas are study contributors to global warming as they trap much of the long wave shaft of light trying to escape. Humans add to the volume of CO2 in the air travel by burning fossil fuels, such as coal and oil. Since the middle 19th century CO2 has increased form 280ppm to 380ppm.Deforestation removes plant that absorb CO2 so not as much goes into the automated teller machine so when they are cut down they stop taking in CO2 meaning t hat there is more in the atmosphere or else than organic matter. CO2 is also released when trees as burnt. One other human activity that releases methane and nitrous oxides is farming. Nitrous oxides are released into the atmosphere when farmers use fertilisers. stock produce a lot of methane which all goes into the atmosphere. And also rice paddy field fields emit methane. The pay offs of global warming are majorly to do with human activities, and we must change what we do.The impact of what we do on the earth has immense global impacts. Precipitation patterns will change and mid to high latitudes will receive a lot more precipitation and drier areas are likely to get drier for warning Africa and Central America. This is due to changes in ocean circulation and wind patterns. These changes will also cause more major weather evens such as floods, droughts and storms. The spread of heat related illness could rise in countries that are more likely to get droughts now and food-bo rne illnesses may increase withal as temperatures rise. Also disease vectors will be able to move to more countries that are currently too cold so malaria could become more of a problem.In near areas higher temperatures and little rain fall will reduce river consort and ground water flow so reservoirs may dry up, this could cause conflict between countries as in almost areas water tally is likely to decrease by 10% by 2020. Food productivity may become a problem as well for a similar reason, however the type of crops grown may change in areas to crops that prefer that areas weather condition. The melting of glaciers and ice caps cause a rise in sea level which means habitats are lost and it will cause flooding in coastal areas and low lying areas this could mean that areas of SE Asia will be lost as well as islandsin the Pacific and Indian ocean. These impacts reflect the problems of the earths fever and we need to oppose to them to put it right again.The response at a globa l level, to global warming, have been to put a protocol together, called the Kyoto Protocol, aimed at trim emissions. This proportionateness was formed in 1997 in vagabond to monitor and reduce babys room gases. Developing countries and develop countries are both included in the scheme, developed countries had to cut emissions by 5% of their 1990 level between 2008 and 2012 and developing countries meet need to monitor their levels so that they dont rise. In order to persuade countries to keep to this incentives are given in the form of blow credits, which countries can then sell to other countries if they are struggling. However the iv countries with the highest CO2 emissions did not sign up originally in business of it effecting their growth and economy.Responses at a national level are also table serviceful. Changing the push mix of the country to use more renewable energy sources will reduce green house emissions from power stations, for example in the UK a 40% reduct ion of emissions by 2020 will be achieved by changing the energy mix. Also carbon capture will cut the amount of CO2 as it transports the excess CO2 to places where it can be stored safely. This has the potential to reduce emissions by 90%. Encouraging kin owners to reduce fuel consumption in there homes would also help and giving financial incentives to passel who create there own energy from renewable resources will hopefully help cut emissions.Furthermore if people were to use their cars less and chose to use public transport, walk or make pass emissions will be cut further. Many cities have now implant up park and ride schemes, for example Oxford, so that you dont have to take you car as far. Finally local responses to climate change include recycling more so there is less waste going to land fill, which produces methane gas and choosing energy efficient appliances as many old appliances produce 50% more emissions then new technologies. These are some things that we have to do to lower the temperature of the earth.In conclusion, Al Gores statement, I feel, is correct as we are modify to the effects of global warming by emitting more CO2 and methane gas into the atmosphere so much of the long wave radiation cannot escape. I thinkthat all international, national and local are all- of the essence(p), as they will all bring positive consequences to responding to global warming even if some have better affects than others.I believe that the international is the most important since its on such a huge scale the affects should be just as big. Recycling and using energy wisely are very easy and if everyone took these actions then the affects of global warming would be reducing massively. I think for these local responses to work the government should spend immense money on promoting them more so than they do already. If all these actions were put in place we would hopefully put the temperature back to where it belongs.