Sökning: "environmental influence on"
Visar resultat 1 - 5 av 1587 avhandlingar innehållade orden environmental influence on.
1. Resource and Environmental Impacts of Resource-Efficiency Measures Applied to Electronic Products
Sammanfattning : Natural resources such as ecosystems, land, water and metals underpin the functioning of economies and human well-being, and are becoming increasingly scarce due to growth in population and affluence. Metals are increasingly demanded for their specific properties as modern technology develops. LÄS MER
2. Lake sediment as environmental archive : natural and anthropogenic influence on the chronology of trace elements
Sammanfattning : The focus of this thesis is the historical pollution of some seldom-monitored trace elements (SMTEs; Ag, Be, Ga, In, Sb and Tl) that have been involuntarily released for several thousands of years but whose usage have increased during the industrial era. Sediment cores from four rural lakes in a south to north transect in central Sweden, and two urban lakes have been used as environmental archives for chronological studies. LÄS MER
3. On Environmental Grounds : Outdoor Recreation, Place Relations and Environmental Sustainability
Sammanfattning : This thesis examines the relationship between outdoor recreation and environmental concern as part of the wider issue of environmental sustainability in late-modern societies. It includes studies of environmentalists’ (that is environmentally committed individuals’) preferences and motivations with regard to outdoor recreation, and covers the inquiries of whether and how outdoor recreation can influence levels of environmental concern. LÄS MER
4. Drivers of carbon sink function in tropical seagrass beds : influence of carbon import, plant composition, seascape configuration and human activities
Sammanfattning : Seagrass meadows are effective carbon sinks, sequestering atmospheric CO2 and capturing allochthonous organic material, storing organic carbon (Corg) in their sediments, so called Blue Carbon. In tropical areas, seagrass meadows have a high number of calcareous organisms, which can offset carbon sequestration by releasing CO2 through their calcification. LÄS MER
5. Assessing design strategies for improved life cycle environmental performance of vehicles
Sammanfattning : Vehicle manufactures have adopted different strategies for improving the environmental performance of their fleet including lightweight design and alternative drivetrains such as EVs. Both strategies reduce energy during use but may result in a relative increase of the impact during other stages. LÄS MER