Wednesday, April 3, 2019

The Main Sources Of Carbon Dioxide Emissions Environmental Sciences Essay

The Main Sources Of Carbon Dioxide Emissions Environmental Sciences EssaySince the industrial Revolution, human activities such as the burning of oil, coal and gas, as wellhead as deforestation have greatly increased CO2 concentrations in the air travel. Almost all CO2 emissions (about 96.5%) come from dodo enkindles use. The 3 types of fogey fuels that are used the most are coal, vivid gas and petroleum. When fossil fuels are combusted, the deoxycytidine monophosphate stored in them is emitted almost entirely as CO2.The troika main areas that use fossil fuels are Transportation Utilities (power, gas, oil etc) industrial productionTransportationThe first new projections of future aircraft emissions in 10 years predict that carbon paper dioxide and other gases from air traffic provide become a signifi seatt outset of global warming as they double or triple by 2050. The most important source of CO2 emissions world bulky is caused by the transportation of goods and people. The emissions caused by people travel (by car, plane, train, etc) are examples of direct emissions since people can chose where they are going and by what method. The emissions caused by the transportation of goods are examples of indirect emissions since the consumer has no direct master of the distance between the factory and the store. Since the distance between the manufacturer and the consumer is forever and a day increase, more(prenominal)(prenominal) pressure is put on the transportation industry to link this gap and this ends up creating more indirect emissions. Whats worse is that 99% of the muscularity used to transport people and goods all over the world comes from the blaze of fossil fuels.Industrial production Manufacturing and industrial processes all combine to farm astronomic amounts of each type of babys room gas but specifically large amounts of CO2 because of two reasons. First, many manufacturing facilities directly use fossil fuels to create heat and s police squad needed at various stages of production. Second, their cypher intensive activities use more electricity than any other sector so unless they are using renewable sources the naught that they use is obligated for vast amounts of emissions. By industrial production we are mainly public lecture about manufacturing, construction, mining, and agriculture. Manufacturing is the largest of the 4 and can be broken down into 5 main categories paper, food, petroleum refineries, chemical substances, and metal/mineral products. These categories account for the vast mass of the energy use and CO2 emissions by the sector.3, 4Land-use ChangeIt is estimated that unreal changes in earth-use have, until now, produced a cumulative global loss of carbon from the land. general deforestation has been the main source of this loss, estimated to be responsible for nearly 90 percent of losses since the mid-ni electronic networkeenth century. Losses primarily occur due to the comparativel y long-term carbon sinks of forests being replaced by agricultural land.The conversion of land from forested to agricultural land can have a wide range of negative effects as far as greenhouse gas emission is concerned. Soil disturbance and increased rates of degeneracy in converted soils can both lead to emission of carbon to the atmosphere, with increased soil erosion and leaching of soil nutrients further reduce the potential for the area to act as a sink for carbon. ventilationRespiration, both on land and in the sea, is a key theatrical role of the global carbon cycle. On land, an estimated 60 Pg C (60 billion tones) is emitted to the atmosphere each year by autotrophic cellular airing.In the sea, autotrophic respiration is thought to account for about 58 Pg of the dissolved inorganic carbon in surface waters each year, with the contribution of heterotrophic respiration being 34 Pg C.Effects of increasing temperatures on pollution can be observed which 1. Higher temperatur es due to carbon dioxide increased the chemical rate of ozone production in urban areas2. Increased water vaporization due to carbon dioxide-induced higher temperatures boosted chemical ozone production even more in urban areas.Engineers have designed a simple, sustainable and natural carbon sequestration solution using alga. A team at Ohio University created a photo bioreactor that uses photosynthesis to grow algae, passing carbon dioxide over large membranes, placed vertically to save space. The carbon dioxide produced by the algae is harvested by dissolving into the surrounding water. The algae can be harvested and made into biodiesel fuel and feed for animals. A reactor with 1.25 million square meters of algae screens could be up and running by 2010.America is by far the largest indorser to global warming than any other country releasing a quarter of the worlds carbon dioxide the primary cause of global warming.Bayless, with a team at Ohio University, created a photo bioreac tor that uses photosynthesis to grow algae besides wish well a plant would take carbon dioxide up and, through the energy of the sun, convert that into oxygen.That passes the carbon dioxide over these membranes, Ben Stuart, an Ohio University environmental engineer, tells DBIS. These membranes are fabric only when like your shirt. Its a woven material, and as the carbon dioxide pass by them, that carbon dioxide dissolves into the water.That carbon dioxide is broken down by the algae. Nitrogen and corking oxygen are released back into the atmosphere. But to capture the CO2 created from a power plant, algae would have to fill a building the surface of Wal-Mart.The size of these things would be enormous, about an acre worth of land space. And so the flu gases would run through this huge building and the algae would be growing on the suspended vertical surfaces. Stuart says.But what makes it cost effective? The algae can be harvested and made into biodiesel fuel and feed for anima ls. Sea take rise densely settled coastal plains would become uninhabitable with just a small rise in sea level, which would result from melt of the ice caps Impacts on agriculture Global warming could have study effects on agricultural productivity Reduction of the ozone layer calefacient would result in increase high cloud cover in winter, giving chemical reactions a platform in the atmosphere, which could result in depletion of the ozone layer Increased extreme weather A warmer mood could change the weather systems of the earth, meaning there would be more droughts and floods, and more frequent and stronger storms Spread of diseases Diseases would be able to spread to areas which were previously withal cold for them to survive in Ecosystem change As with the diseases, the range of plants and animals would change, with the net effect of most organisms moving towards the North and South Poles

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