Banning Single Use Plastics to Reduce Terrestrial and Marine Pollution and Greenhouse Emissions
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This paper examines the effectiveness of banning single-use plastic materials as a response to the rising ocean pollution endangering marine life and greenhouse gas emissions from plastic manufacturing industries.
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1 Banning single use plastics as a response to terrestrial and marine plastic pollution impacts and to reduce greenhouse emissions from plastics production. Name: College: Date:
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2 Purpose Plastics find a wide range of applications from food packaging material to countless devices such as medical equipment and energy generation devices such as wind turbines and solar panels. It is an indisputable fact that plastics have revolutionized the lives of millions of people worldwide. However, like everything else, the myriad advantages associated with plastic use do not come without a cost. The use of plastics, especially those designed for single use is a major contributing factor to two main forms of environmental pollution namely, greenhouse and marine pollution. This paper seeks to examine the effectiveness of banning single-use plastic materials as a response to the rising ocean pollution endangering marine life and greenhouse gas emissions from plastic manufacturing industries. Background Plastics have been in use for a considerably long time, since the mid nineteenth century. However, their use has recently been rising rapidly and this can be attributed to the increasing global population as well as technological and economic development which has seen the establishment of many different industries. The global plastic production was estimated at 407 million tons per year in 2015 (Ricardo Barra, Sunday A, & Leonard, 2018). If the current rate of production is maintained, production is estimated to hit about 1600 million tonnes per annum in 2050 (Ricardo Barra, Sunday A, & Leonard, 2018). It is estimated that, about 50 % of plastics are designed to be disposed after only a single use. For instance, packaging agricultural products and other consumer items. Plastics manufactured for long term use, for example in materials such as conduits and cable coatings are estimated to be in the range of 20 to 25 %. Currently, most of the plastics produced are non-biodegradable. This means that they have the ability to last several decades into the future (Improving Plastics Management,
3 2018). Besides, biodegradable plastics can last for a significant length of time because the rate of degradation is dependent on environmental factors such as temperature and oxygen (). The massive production of plastics coupled with poor control policies have profound impacts on the environment including greenhouse gas emissions which have led to global warming, marine pollution and chemical contamination to name but a few. These effects require immediate action to be taken if humankind is to hope for the achievement of a sustainable future. Without proper policies in place, the plastic menace will prove a huge stumbling block in the fight against climate change and the associated effects. Negative impacts of plastic use on the environment Marine pollution Microplastics is a term commonly encountered in the study of the effects of plastic on marine life. It captures the fact that material such as plastic water bottles are broken down into smaller pieces which can be easily ingested by aquatic organisms such as fish (Improving Plastics Management,2018). It is estimated that the ocean contains more than 150 million tonnes of plastic which is equivalent to about five trillion micro and macroplastic particles (Improving Plastics Management,2018). Without intervention, the quantity of plastics in the ocean could triple by 2025 (Galloway, 2015). Plastics designed for single use are the major contributors to this leakage. Annually, approximately 330 billion plastics are produced for single use then discarded into the surroundings (Galloway, 2015). These account for almost 50 % of the beach litter in the sea areas including the Mediterranean, the Black Sea, Baltic and North Atlantic (Ricardo Barra, Sunday A, & Leonard, 2018). As many of the marine organisms are a source of food for many people globally, these Microplastics are incorporated into the food chain. This has high potential for adverse effects on human health
4 since these plastics usually contain toxic chemicals (Ricardo Barra, Sunday A, & Leonard, 2018). Plastic is considered the second biggest threat to the sustainability of coral reefs after climate change. It is said to increase the probability of disease outbreak by over twenty times, posing a high threat to marine habitats which are a source of food. Besides, this affects the protection of coastal heritage and the income of millions of people (Ricardo Barra, Sunday A, & Leonard, 2018). Greenhouse gas emissions The manufacture of normal plastics is highly dependent on feedstock from fossil fuels such as oil and natural gas. The process also requires significant amounts of water. It is estimated that to make one kilogram of plastic, about 185 litres of water are needed. The production of plastics uses about 6 % of the quantity of oil produced globally with this percentage expected to rise by 14 % by 2050 if the current rate of consumption is maintained (Russell, 2018). This clearly indicates the level of carbon (iv) oxide emission associated with the entire process of manufacturing plastics. The first stage that contributes to the emission of carbon (iv) oxide is the extraction and processing of natural gas and oil as the feedstocks for plastic production. In 2015, the United States alone was reported to have about 9.5 to 10.5 million tons of carbon (iv) oxide emissions attributed to the extraction and transport of fossil fuels associated with plastic production (Williams, 2017). Outside the United States, the figure is quite high at about 108 million tons of carbon (iv) oxide per annum due to extraction and refining. The second stage is refining and manufacture. Plastic refining is one of the most intensive and fastest growing industries in terms of greenhouse gas emissions. The manufacture of plastic produces significant emissions via the cracking of alkanes, polymerization, plasticization and other processes (Russell, 2018). The emissions from the cracking of
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5 alkanes to produce ethylene were estimated to range between 184.3 to 213 million metric tons of carbon (iv) oxide emissions in 2015. For comparison, this corresponds to approximately 45 million passenger vehicles operating throughout the year (Russell, 2018). These emissions are rising rapidly with the construction of new facilities around the globe. The third stage is the combustion or burning of waste products made from plastics which are estimated to emit about 390 million tons of carbon (iv) oxide in 2012 alone (Russell, 2018). Worldwide, emissions from the plastic sector were projected to rise from 1 % in 2014 to about 15 % in 2050 on current trends (Russell, 2018). The response The above highlighted issues concerning plastic use and the impacts on the environment have called for action and the formulation of policies aimed at ensuring responsible use and accountability. The two major steps taken include recycling as much plastic as possible and banning single use plastics. Around the globe, several countries have passed laws banning the use of plastics designed to be used only once. These include Rwanda and Kenya (UNEP, 2018). Among the recent countries to introduce regulatory bans on single use plastic bags include Canada, the United States and the United Kingdom (UNEP, 2018). In 2018, Canada banned the use of 50 microns or less single use plastic bags (UNEP, 2018). In 2016, all single-use plastic shopping bags were banned in France. Earlier this year, it was announced that the government of South Australia would ban the use of plastic items such as straws (). This is in response to growing public consciousness regarding the negative impact of plastics on the environment, particularly the rising number of seabirds dying from ingesting plastics (). Research shows that about eight million tonnes of plastics are dumped into the ocean per year. If this trend continues, it is estimated that
6 plastic will outnumber the fish in the ocean by 2050 (Australian Capital Territory. Transport Canberra and City Services Directorate, 2019). As a result, all the other states, including Queensland must strive to put similar measures in place because the necessary change cannot be achieved by a single state. Socio-economic impacts of plastic ban Often studies concentrate much on the environmental benefits from the ban of plastic use and largely ignore the economic. The ban on the manufacture of single-use plastics leads to a direct loss of jobs for many people who work in these industries. In the US, the plastic-bag manufacturing sector employs over 30000 people across 349 communities. Evidently, a ban would render a lot of people jobless raising the unemployment level. Research strengths and gaps Most of the studies have provided estimate figures which appear consistent across the articles. Most of the articles focus on the negative impact of plastics on the physical environment providing significant data for comparison. However, there is still limited data on the effectiveness of bans imposed on single-use plastics. I order to improve on this, governments can include reporting obligations in their legislations to track performance for comparability across years. Conclusion The global dependence on plastics is a complex issue and in order to achieve the intended global change in the long run, more needs to be done. Fortunately, a review of the ban imposed on plastics has shown that it is possible to obtain positive results.
7 References Australian Capital Territory. Transport Canberra and City Services Directorate. (2019).Phasing Out Single-use Plastics: Discussion Paper. Galloway,T.S. (2015). Micro- and Nano-plastics and Human Health.Marine Anthropogenic Litter, 343-366. doi:10.1007/978-3-319-16510-3_13 Improving Plastics Management. (2018).OECD Environment Policy Papers. doi:10.1787/c5f7c448-en Ricardo Barra, Sunday A, & Leonard. (2018).Plastics and the circular economy. Russell,S. (2018). A Circular Economy for Plastics?Plastics Engineering,74(1), 6-7. doi:10.1002/j.1941-9635.2018.tb01823.x UNEP, (2018).Single-use Plastics, a Roadmap for Sustainability. Williams,J. (2017). A Plastic Fit for a Circular Economy.Plastics Engineering,73(8), 36- 38. doi:10.1002/j.1941-9635.2017.tb01778.x
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8 APPEDICES Sanity table Publishing detailsYearBiophysicalSocio-economic BenefitsDisadvantagesBenefitsDisadvantages 1.UNEP2018Sufficient hard data on plastic production and future projection No hint on how data was obtained Sufficient hard data Funded by the United Nations Little data on socio- economic effects 2.Australian Capital Territory. Transport Canberra and City Services Directorate.Phasing Out Single-use Plastics: Discussion Paper 2019Reliable data (funded by the government) Controversial data regarding quantity of plastic dumped in the ocean Provides up-to- date data and information on plastic ban on the economy Does not specify alternative replacements for the phased-out material 3.Williams,J. A Plastic Fit for a Circular Economy.Plastics Engineering 2017Includes both primary and secondary data sources Some of the data provided regarding CO2 emissions is controversial Clearly outlines the effects of different plastic-related policies on the economy No data on the effects of plastics on social development 4.Galloway,T.S. Micro- and Nano-plastics and Human Health.Marine Anthropogenic Litter 2015Sufficient and relevant information Little evidence to back provided data Clearly outlines the effects of nano- and microplastics on marine and human health Limited data and information on socio- economic effects 5.Russell,S. A Circular Economy for Plastics?Plastics Engineering 2018Consistent data and information on plastic manufacture Limited data on marine pollution Primary sources of data used hence reliable Controversial data on plastic production globally 6.Ricardo Barra, Sunday A, & Leonard.Plastics and the circular economy 2018A lot of statistics provided No sufficient evidence to back data on marine pollution Primary sources of data used hence reliable Focuses too much on the information without sufficient statistics 7.Improving Plastics Management.OECD 2018Provides sufficient data Controversial data on CO2 Funded by international Does not specify how
9 Environment Policy Papers concerning effects of single-use plastic on marine life emissionsgovernments. Information and data are reliable the specified policies should be implemented Advantages of banning plastic bagsDisadvantages 1.Reduction of CO2emissions 2.Reduces dependency on petroleum, a non- renewable resource 3.Improves the efficiency of drainage systems 4.Saves tax payers money which is otherwise used for litter picking and management 5.Safeguards the quality and lives of marine organisms. 6.Creates a market for manufactures to invest in the production of reusable bags 1.Reusable bags are more expensive which raises expenses for consumers 2.Unemployment as layoffs result from closure of companies that manufacture single-use plastics 3.Plastic bags can reduce food contamination by certain types of bacteria 4.It takes time to become comfortable with the use of reusable bags as they are not as easy and convenient as single-use plastic bags.