scholarly journals Investigating the effect of vegetation on the absorption of carbon dioxide (case study: Yadavaran oil field, Iran)

Author(s):  
Mohammad Velayatzadeh ◽  
Sina Davazdah Emami

Introduction: One of the most important environmental issues related to the energy sector is the global climate change caused by the accumulation of greenhouse gases. Increasing the concentration of greenhouse gases in the atmosphere causes global warming, which has dangerous consequences. This research was conducted to investigate the effect of vegetation on the amount of carbon dioxide emissions in the Yadavaran oil field in 2017. Materials and methods: In this research, information was collected and pa- rameters were measured in 5 stations (Contractor Services Camp, Water Sup- ply, Permanent camp, Green space and Pioneer camp) with 3 replications. Re- garding the administrative and operational hours, measuring the parameters of research was carried out during the working hours of the day in spring and June 2017. In this study, the amount of temperature, velocity and wind direc- tion of the dominant region, moisture content, oxygen content, green space and vegetation, buildings and barriers, and the distances and closeness of the emission sources and altitudes from the ground surface were taken. Results: According to the results obtained in areas with vegetation and trees, at the pioneer camp and the water supply camp with increasing temperature, the amount of carbon dioxide has also increased. In the campus, the service contractor and the green area of the region with a decrease in temperature, carbon monoxide in the air was also downtrend. Conclusion: The temperature and humidity did not affect the concentration of oxygen in the air, and it was the same in the five study areas.

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Angela Margaret Evans

Abstract Background Healthcare aims to promote good health and yet demonstrably contributes to climate change, which is purported to be ‘the biggest global health threat of the 21st century’. This is happening now, with healthcare as an industry representing 4.4% of global carbon dioxide emissions. Main body Climate change promotes health deficits from many angles; however, primarily it is the use of fossil fuels which increases atmospheric carbon dioxide (also nitrous oxide, and methane). These greenhouse gases prevent the earth from cooling, resulting in the higher temperatures and rising sea levels, which then cause ‘wild weather’ patterns, including floods, storms, and droughts. Particular vulnerability is afforded to those already health compromised (older people, pregnant women, children, wider health co-morbidities) as well as populations closer to equatorial zones, which encompasses many low-and-middle-income-countries. The paradox here, is that poorer nations by spending less on healthcare, have lower carbon emissions from health-related activity, and yet will suffer most from global warming effects, with scant resources to off-set the increasing health care needs. Global recognition has forged the Paris agreement, the United Nations sustainable developments goals, and the World Health Organisation climate change action plan. It is agreed that most healthcare impact comes from consumption of energy and resources, and the production of greenhouse gases into the environment. Many professional associations of medicine and allied health professionals are advocating for their members to lead on environmental sustainability; the Australian Podiatry Association is incorporating climate change into its strategic direction. Conclusion Podiatrists, as allied health professionals, have wide community engagement, and hence, can model positive environmental practices, which may be effective in changing wider community behaviours, as occurred last century when doctors stopped smoking. As foot health consumers, our patients are increasingly likely to expect more sustainable practices and products, including ‘green footwear’ options. Green Podiatry, as a part of sustainable healthcare, directs us to be responsible energy and product consumers, and reduce our workplace emissions.


2008 ◽  
Vol 8 (2) ◽  
pp. 7373-7389 ◽  
Author(s):  
A. Stohl

Abstract. Most atmospheric scientists agree that greenhouse gas emissions have already caused significant changes to the global climate system and that these changes will accelerate in the near future. At the same time, atmospheric scientists who – like other scientists – rely on international collaboration and information exchange travel a lot and, thereby, cause substantial emissions of carbon dioxide (CO2). In this paper, the CO2 emissions of the employees working at an atmospheric research institute (the Norwegian Institute for Air Research, NILU) caused by all types of business travel (conference visits, workshops, field campaigns, instrument maintainance, etc.) were calculated for the years 2005–2007. It is estimated that more than 90% of the emissions were caused by air travel, 3% by ground travel and 5% by hotel usage. The travel-related annual emissions were between 1.9 and 2.4 t CO2 per employee or between 3.9 and 5.5 t CO2 per scientist. For comparison, the total annual per capita CO2 emissions are 4.5 t worldwide, 1.2 t for India, 3.8 t for China, 5.9 t for Sweden and 19.1 t for Norway. The travel-related CO2 emissions of a NILU scientist, occurring in 24 days of a year on average, exceed the global average annual per capita emission. Norway's per-capita CO2 emissions are among the highest in the world, mostly because of the emissions from the oil industry. If the emissions per NILU scientist derived in this paper are taken as representative for the average Norwegian researcher, travel by Norwegian scientists would nevertheless account for a substantial 0.2% of Norway's total CO2 emissions. Since most of the travel-related emissions are due to air travel, water vapor emissions, ozone production and contrail formation further increase the relative importance of NILU's travel in terms of radiative forcing.


2021 ◽  
Vol 19 (5) ◽  
pp. 35-42
Author(s):  
Abdullah A. Abdullah

The element carbon Carbon dioxide emissions are increasing primarily as a result of people's use of fossil fuels for electricity. Coal and oil are fossil fuels that contain carbon that plants removed from the atmosphere by photosynthesis over millions of years; and in just a few hundred years we've returned carbon to the atmosphere. The element carbon Carbon dioxide concentrations rise primarily as a result of the burning of fossil fuels and Freon for electricity. Fossil fuels such as coal, oil and gas produce carbon plants that were photosynthesized from the atmosphere over many years, since in just two centuries, carbon was returned to the atmosphere. Climate alter could be a noteworthy time variety in weather designs happening over periods ranging from decades to millions of a long time. The permanent change in climatic conditions, or in the time period of long-term natural conditions, indicates irregularity in climatic conditions. Discuss toxins are pollutants that have an adverse impact on the ecosystem through interferometry's with the climatic environment, plant physiology, creature organisms, complete biological systems and human property in the form of agricultural or human crops. We list the best climate to represent the fact that global climate change has been identified as one of the major environmental problems facing humanity in the 21st century. In this context, the list of "classic" poisons must be included alongside substances such as oxides of nitrogen or sulfide. Certain environment limiting agents – the most crucial of them being carbon dioxide – which otherwise do not damage life formations. On the other hand, climate research has linked some compounds that have long been known to discuss toxin (occasionally dark CO2) with the warming of the climate.


2014 ◽  
Vol 805 ◽  
pp. 403-408
Author(s):  
Otávio Luiz do Nascimento ◽  
Alexandra Ancelmo Piscitelli Mansur ◽  
Herman Sander Mansur

Increased public awareness of the threats posed by global warming has led to greater concern over the impact of anthropogenic carbon emissions on the global climate associated with the level of carbon dioxide (CO2) in the atmosphere. Hence, without radical market, technological, and cultural changes, the CO2 concentrations are expected to rise to unbearable levels within just few decades ahead. The production of cement is estimated to be responsible for approximately 5% of the global carbon dioxide emissions. Consequently, aiming for creating a more sustainable world, engineers and scientists must develop and put into use greener building materials that may revolutionize the entire construction industry. This study presents an innovative product for settlement of ceramic tiles as a potential alternative for replacing the conventional cement based mortar in some specific building applications. Essentially, the novel system is based on a double face polymer-adhesive sheet (“cement-free product”). Thus, the main goal was to evaluate the performance and estimate the durability of the developed system. Pull-off tests were conducted in order to compare this new system to the traditional one, with polymer modified mortar, under different procedures and conditions of cure. In addition, both systems were modeled using Finite Element Method (FEM) to obtain the stresses at the interface between ceramic-tile and adhesive. Based on the results, the recommended limits of bond strength for the innovative “cement-free product” of ceramic tile installation could be lower than those specifications used for the equivalent mortar systems. Therefore, these results give some preliminary evidence that by using the new “cement-free” product for ceramic-tile installation may lead to some increase in the productivity and, more important, in the sustainability of a relevant sector of the construction industry.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
William T. Morgan ◽  
Eoghan Darbyshire ◽  
Dominick V. Spracklen ◽  
Paulo Artaxo ◽  
Hugh Coe

AbstractDeforestation rates have declined substantially across the Brazilian Legal Amazon (BLA) over the period from 2000–2017. However, reductions in fire, aerosol and carbon dioxide have been far less significant than deforestation, even when accounting for inter-annual variability in precipitation. Our observations and analysis support a decoupling between fire and deforestation that has exacerbated forest degradation in the BLA. Basing aerosol and carbon dioxide emissions on deforestation rates, without accounting for forest degradation will bias these important climate and ecosystem-health parameters low, both now and in the future. Recent increases in deforestation rate since 2014 will enhance such degradation, particularly during drought-conditions, increasing emissions of aerosol and greenhouse gases. Given Brazil’s committed Nationally Determined Contribution under the Paris Agreement, failure to account for forest degradation fires will paint a false picture of prior progress and potentially have profound implications for both regional and global climate.


1999 ◽  
Vol 26 (3) ◽  
pp. 166-168 ◽  
Author(s):  
TIM NEWCOMB

Many nations have recognized the need to reduce the emissions of greenhouse gases (GHGs). The scientific assessments of climate change of the Intergovernmental Panel on Climate Change (IPCC) support the need to reduce GHG emissions. The 1997 Kyoto Protocol to the 1992 Convention on Climate Change (UNTS 30822) has now been signed by more than 65 countries, although that Protocol has not yet entered into force. Some 14 of the industrialized countries listed in the Protocol face reductions in carbon dioxide emissions of more than 10% compared to projected 1997 carbon dioxide emissions (Najam & Page 1998).


Author(s):  
José Luis Reyes-Barragán ◽  
Juan Luis Caro-Becerra ◽  
Said Robles-Casolco ◽  
Roberto Ademar Rodríguez-Díaz

The inefficient use of fuels for the burning of bricks generates importan emissions of pollutants into the atmosphere, among them carbon dioxide CO2, nitrous dioxide NO2 and Greenhouse Gases (GHG), so it is very important to quantify these emissions and establish with it a baseline of carbon dioxide emissions equivalent (CO2eq). The goal of this project is the implementation of brick kilns in the municipality of Tlajomulco of Zúñiga with the aim to reduce the ecological footprint, based on the existing ecological furnaces called MK2, having as oven innovation the placement of a second wall, which will manage to contain the generated heat, thus achieving a closed system isolated in both ovens connected to each other, to take advantage of it an optimal pre-drying of the bricks. This reseach is based on not having heat losses due to it is hermeticity, since the ecological furnaces has a double sealing wall reducing the burning time beetween 7 and 12 days.


2003 ◽  
pp. 277-315 ◽  
Author(s):  
J. Timmons Roberts ◽  
Peter E. Grimes ◽  
Jodie L. Manale

Carbon dioxide is understood to be the most important greenhouse gas believed to be altering the global climate. This article applies world-system theory to environmental damage. An analysis of 154 countries examines the contribution of both position in the world economy and internal class and political forces in determining a nation's CO, intensity. CO, intensity is defined here as the amount of carbon dioxide released per unit of economic output. An inverted U distribution of CO, intensity across the range of countries in the global stratification system is identified and discussed. Ordinary Least Squares regression suggests that the least efficient consumers of fossil fuels are some countries within the semi-periphery and upper periphery, spe-cifically those nations which are high exporters, those highly in debt, nations with higher military spending, and those with a repressive social structure.


2020 ◽  
Vol 20 (14) ◽  
pp. 8501-8510 ◽  
Author(s):  
Bo Zheng ◽  
Frédéric Chevallier ◽  
Philippe Ciais ◽  
Grégoire Broquet ◽  
Yilong Wang ◽  
...  

Abstract. In order to track progress towards the global climate targets, the parties that signed the Paris Climate Agreement will regularly report their anthropogenic carbon dioxide (CO2) emissions based on energy statistics and CO2 emission factors. Independent evaluation of this self-reporting system is a fast-growing research topic. Here, we study the value of satellite observations of the column CO2 concentrations to estimate CO2 anthropogenic emissions with 5 years of the Orbiting Carbon Observatory-2 (OCO-2) retrievals over and around China. With the detailed information of emission source locations and the local wind, we successfully observe CO2 plumes from 46 cities and industrial regions over China and quantify their CO2 emissions from the OCO-2 observations, which add up to a total of 1.3 Gt CO2 yr−1 that accounts for approximately 13 % of mainland China's annual emissions. The number of cities whose emissions are constrained by OCO-2 here is 3 to 10 times larger than in previous studies that only focused on large cities and power plants in different locations around the world. Our satellite-based emission estimates are broadly consistent with the independent values from China's detailed emission inventory MEIC but are more different from those of two widely used global gridded emission datasets (i.e., EDGAR and ODIAC), especially for the emission estimates for the individual cities. These results demonstrate some skill in the satellite-based emission quantification for isolated source clusters with the OCO-2, despite the sparse sampling of this instrument not designed for this purpose. This skill can be improved by future satellite missions that will have a denser spatial sampling of surface emitting areas, which will come soon in the early 2020s.


2018 ◽  
Vol 171 ◽  
pp. 05001
Author(s):  
Avram Lazăr ◽  
Cristescu Tudora ◽  
Stoica Monica Emanuela

The weather changes we are currently witnessing, characterised by dynamism and extreme phenomena, are the direct and indirect result of human activities which are determining the global atmosphere change in composition. The paperwork follows the evaluation and comparison of carbon dioxide emission coefficient in case of liquid oil fuels burning. The calculus model used for the carbon dioxide emission coefficient evaluation has been developed based on mathematical models from specific publications. It was applied in the case study based on data from specific literature. The results obtained following the evaluation allowed certain comparisons in the field of carbon dioxide emissions in case of the complete burning of certain fluid hydrocarbons use in industry.


Sign in / Sign up

Export Citation Format

Share Document