Sökning: "CO2"

Visar resultat 1 - 5 av 1779 uppsatser innehållade ordet CO2.

1. 1. SOIL GROSS NITROGEN MINERALISATION AND FOREST GROWTH IN FOUR HEMIBOREAL FOREST STANDS IN SOUTHWEST SWEDEN

   Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

   Författare :Linnéa Eriksson; [2023-04-20]
   Nyckelord :soil C:N; forest production; 15N isotope dilution; gross N mineralisation; ammonium; soil carbon; soil nitrogen; root exudates; stoichiometric decomposition; boreal forests; priming; microbial C limitation;

   Sammanfattning : Boreal and temperate forests together make up the largest terrestrial net C sink in the world. They take up carbon dioxide (CO2) from the atmosphere and store it in plant biomass and soil as they grow, making them crucial in mitigating global climate change. LÄS MER

3. 2. Profitability During a Sustainability Transformation - A Case Study of a Swedish Petroleum and Biofuel Company

   Kandidat-uppsats, Göteborgs universitet/Företagsekonomiska institutionen

   Författare :Michael Crona; Filip Linnér; [2023-02-27]
   Nyckelord :This report examines the financial profitability of a petroleum and biofuel company during their sustainability transformation. The case company is Preem AB; the largest fuel company in Sweden. The study finds that debt-to-equity ratios tend to increase with investments in more sustainable solutions. This could propose a higher financial risk to the firm. The report also proposes and discuss the use of metrics for CO2- emission that are easier to understand than just the weight of the gas emitted. Preem does not seem to benefit from being part of the European Union’s Emissions Trading System ETS ; since their green investments are focused on reducing emissions in the use phase of their products; not in the production phase; which is what the ETS measures and rewards. The case study is based on an interview with a director at Preem to get an insight to the green investments. Data for financial- and environmental performance are collected from official reports published by Preem.;

   Sammanfattning : This report examines the financial profitability of a petroleum and biofuel company during their sustainability transformation. The case company is Preem AB, the largest fuel company in Sweden. The study finds that debt-to-equity ratios tend to increase with investments in more sustainable solutions. LÄS MER

4. 3. A test of the Environmental Kuznets Curve in the Nordic countries

   Kandidat-uppsats, Göteborgs universitet/Institutionen för nationalekonomi med statistik

   Författare :Anthon Kazemi; Nora Laurin; [2023-02-09]
   Nyckelord :;

   Sammanfattning : Climate change arising from global warming is an important issue for the global community to resolve for the prospect of a sustainable future. It is therefore crucial to gain understanding in how nations can contain the progression of global warming created by emissions of greenhouse gases. LÄS MER

5. 4. A European Material Kuznets Curve

   Kandidat-uppsats, Stockholms universitet/Nationalekonomiska institutionen

   Författare :Pyry Järvinen; Emil Fernström; [2023]
   Nyckelord :Material Kuznets Curve; Environmental Kuznets Curve; Economic Growth; Economics Development; Material Footprint; Emissions; Sustainable Growth; Decoupling; Europe;

   Sammanfattning : This bachelor thesis investigates the correlation between 28 European countries’material footprints (MF), as proxied by their Raw Material Consumption (RMC)per capita, and the environmental impact indicated by their carbon dioxide (CO2)emissions per capita, respectively, with their economic development, measured bytheir purchase power parity adjusted gross domestic product (GDP) per capita,during the period of 2008 to 2019. Specifically, through the theoretical frameworkof the Environmental Kuznets Curve (EKC) and by utilizing Fixed EffectsOrdinary Least Squares regression models as well as Pooled Mean Groupestimation, the thesis asks whether or not evidence can be found for the possibleexistence of an EKC, an inverted-U shaped relationship between environmentaldegradation and economic development, within this European context. LÄS MER

7. 5. The effect of recycling and processing routes on recrystallization in a secondary 3xxx aluminium alloy

   Master-uppsats, Jönköping University/JTH, Material och tillverkning

   Författare :Anton Rolseth; [2023]
   Nyckelord :Aluminium alloys; sheet metal forming; grain boundary segregation; recrystallization; Zener pinning; casting; rolling;

   Sammanfattning : Aluminium alloys have the possibility to be infinitely recycled. By only generating 5% of the emissions compared to primary aluminium, great CO2 savings can be made. One of the issues in manufacturing components entirely from post-consumer scrap is the presence of trace elements and impurities. Such elements can be Fe, Cu, Cr, P and Pb. LÄS MER