Sökning: "biogenic emissions"
Visar resultat 11 - 15 av 32 avhandlingar innehållade orden biogenic emissions.
11. Time-dependent climate impact of production and use of wood pellets from short rotation forestry and logging residues
Sammanfattning : Anthropogenic greenhouse gas (GHG) emissions are the main cause of climate change, with combustion of fossil fuels and land use changes being the main source of emissions. Wood pellets are considered a viable replacement for fossil fuels. Therefore this thesis sought to increase the knowledge base for planning new wood pellet systems. LÄS MER
12. Promises and Pitfalls of Bioenergy with Carbon Capture and Storage : Actors' Perspectives, Challenges, and Mitigation Deterrence in Sweden
Sammanfattning : Carbon dioxide removal (CDR) methods, such as bioenergy with carbon capture and storage (BECCS), have gained traction in international climate policy arenas to meet net-zero goals. Even though companies operating facilities with large point sources of biogenic emissions, such as pulp and paper industries and energy utilities, could implement carbon capture, there are few studies that take a bottomup perspective to study these key actors. LÄS MER
13. On the role of terrestrial ecosystems in a changing Arctic
Sammanfattning : The global temperature rise is proportional to the cumulative amount of CO2 emissions to the atmosphere. This observation is consistent between climate models and historical observations. LÄS MER
14. Development and Evaluation of Methods in Source Apportionment of the Carbonaceous Aerosol
Sammanfattning : Carbonaceous aerosols are known to affect human health negatively and to affect the climate of Earth. As specific types of aerosols originate from specific sources, it is important to know the amount of aerosols emitted from each source. Aerosol source apportionment is an important tool in mitigating air pollution and improving air quality. LÄS MER
15. Speeding up the Atmosphere : Experimental oxidation studies of ambient and laboratory aerosols using a flow reactor
Sammanfattning : Apart from gases, the air we breath consist of tiny, so called, aerosol particles. A cubic metre of air in a relatively clean environment can consist of several billion aerosol particles. The impact of these particles on human health and on climate is significant. LÄS MER