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To meet climate objectives our society needs to be more resource efficient, and a circular economy is part of the solution. Maintaining and repairing products to prolong their lifetime is usually better than replacing the product. In Sweden there are existing economic policies such as value added tax and tax reductions that incentivize the consumer towards prolonging the life of their products, bu
Due to the growing e-commerce volumes, product returns have become an increasingly important issue within the fashion industry. About 70 % of all returns are caused by poor fit or size. Therefore, there is a need to improve fit and size information online to decrease the rate of returns. In recent years, there has been an increased interest for implementing AI solutions to improve consumer informa
The Greenhouse Gas Reduction Mandate (GGRM, reduktionsplikten) is Swedish legislation focused on reducing carbon emissions by mandating that the emissions of certain fuels are reduced by a specified percentage, that percentage increasing each year. This paper investigates the rationale behind a political drive to decrease the GGRM, the cost-effectiveness of the GGRM, and the consequences of t
The European union and the Convention on biological diversity require 30% of all land to be protected by 2030, stressing the necessity for increased nature conservation. To meet the requirements different forms of protection are needed. Thus, nature conservation agreements (NCA) relevant for further exploration, as they are not used in as large of an extent as other nature conservation types. Thi
Regulations regarding management of dredged sediment from the maintenance of artificial ponds and other wetlands are ambiguous. Currently in Sweden, compliance with guidelines concerning pollutants is often prioritized over the climate impact associated with the transportation during disposal of these sediments. Therefore, this study aimed to evaluate the applicability of current guidelines to dre
Air pollution is a major environmental and health problem globally, with traffic emissions being a significant source of many pollutants. The aim of this study is to investigate whether the levels of nitrogen dioxide (NO2), ground-level ozone (O3) and coarse particles (PM10) in air changed during the covid-19 pandemic in Sweden, and whether the change varied between urban and rural areas and depen
Forestry in Fennoscandia is currently dominated by conventional rotation forestry, but an increased interest in continuous cover forestry (CCF) methods has been observed in both Finland and Sweden. The Finnish state-owned enterprise Metsähallitus has since a couple of years used CCF in 25% of their forests, and this paper aims to identify factors that could hinder or prove disadvantageous for Svea
This study presents a systematic overview and mapping of potential metrics for evaluating the impact of forest management on biodiversity in Swedish forestry. The primary approach involves quantitative Life Cycle Impact Assessments (LCIA) as part of Life Cycle Assessments (LCA). Given the increasing need to integrate the impact on biodiversity into complex value chains, the absence of a standardis
This study focuses on PFAS-pollution, specifically the pollution situation for four objects in Svedala municipality. Per- and Polyfluorinated Chemicals (PFAS) has been used widely since the 1950s and spread because of anthropogenic activities, due to their characteristics, such as dirt-, grease, and water repellent properties in cosmetics, textiles and fire extinguishers. PFAS has shown to be pers
The start-up company LEVTEK is launching a new ultralight electric utility vehicle called the LEVKART. The Levkart uses a combination of robotics and AI-technology to offer semi-autonomous or autonomous riding and usage. The purpose of the vehicle is to serve as an alternative to cargo bikes and electric scooters designed for easy usage and as a more sustainable option to fossil-based transport. T
Drained peatlands in Sweden emit approximately 11 tons of carbon dioxide equivalents annually. Attempts to rewet to eliminate emissions have shown that the irreversible processes of peat oxidation in the form of peatland deposition makes it hard, since it instead greatly increases methane gas emissions. This study presents a literature review of the environmental consequences of peat and peatland
Carbon emissions from the transport sector are one of the main drivers of climate change, and electrified transportation is one attempt to reduce the sector’s climate impact. Levtek Sweden AB is a start-up company developing the Levkart, a lightweight and autonomous four wheeled vehicle. To aid Levtek in developing a sustainable vehicle, this thesis aims to investigate the environmental impact of
Mitigation of climate change as the main goal of the Paris Agreement aims to keep the global mean temperature at 1.5 Celsius. As of now daily global temperature are surpassing this threshold which indicates the urgency to reenact more work in limiting green house gas emissions and at the same time optimize sequestration of carbon dioxide already in the atmosphere. One key instrument to sequester c
The Great Recession hit Spain deteriorating the living conditions of many Spanish people, increasing the prevalence of several chronic health issues, including obesity, and affecting health inequalities. We analyse the impact of this economic crisis on body mass index (BMI) disparities in Spain, from two perspectives: the socioeconomic and the territorial, through the application of an intersectio
Background: Fruit and vegetable consumption might prevent weight gain through their low energy density and high dietary fiber content. Objective: We assessed the association between the baseline consumption of fruit and vegetables and weight change in participants from 10 European countries participating in the European Prospective Investigation into Cancer and Nutrition study. Design: Diet was as
Background: In preparing the fifth edition of the Nordic Nutrition Recommendations (NNR), the scientific basis of specific food-based dietary guidelines (FBDG) was evaluated. Objective: A systematic review (SR) was conducted to update the NNR evidence based on the association between the consumption of potatoes, berries, whole grains, milk and milk products, and red and processed meat, and the ris
Background and purpose Most studies on high tibial osteotomies (HTOs) have been hospital-based and have included a limited number of patients. We evaluated the use and outcome-expressed as rate of revision to knee arthroplasty-of HTO performed in Sweden with 9 million inhabitants, 1998-2007. Patients and methods 3, 161 HTO procedures on patients 30 years or older (69% men) who were operated on for
We have studied the oxidation of CO over Rh(100) using high pressure x-ray photoelectron spectroscopy under CO and O2 pressures ranging from 0.01 to 1 mbar. The results show a very low or no conversion for the CO covered surface found at low temperatures, while the activity rises slightly when the temperature is high enough for some CO to desorb, exposing surface sites for dissociative O2 adsorpti
We theoretically investigate the transport properties of cold bosonic atoms in a quasi-one-dimensional (1D) triple-well potential that consists of two large outer wells, which act as microscopic source and drain reservoirs, and a small inner well, which represents a quantum-dot-like scattering region. Bias and gate 'voltages' introduce a time-dependent tilt of the triple-well configuration, and ar
