Sökning: "stock pollution"

Hittade 5 avhandlingar innehållade orden stock pollution.

  1. 1. Bioenergy, pollution, and economic growth

    Författare :Mattias Ankarhem; Runar Brännlund; David Stern; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Forest sector; Forest fuels; Dynamic factor demand; Adjustment costs; Economic growth; Pollution; Environmental Kuznets curve; Shadow price; Distance function; Nationalekonomi; Economics; Nationalekonomi; Economics; nationalekonomi;

    Sammanfattning : This thesis consists of four papers: two of them deal with the effects on the forest sector of an increase in the demand for forest fuels, and two of them concern the relation between economic growth and pollution. Paper [I] is a first, preliminary study of the potential effects on the Swedish forest sector of a continuing rise in the use of forest resources as a fuel in energy generation. LÄS MER

  3. 2. Managing agricultural nutrient leaching within the EC Water Framework Directive in Sweden

    Författare :Anna-Lena Bratt; Per Sandén; Martin Ljung; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nutrient leaching; agricultural pollution; C Water Framework Directive; water quality; legislation; övergödning; lantbruk; Water in nature and society; Vatten i natur och samhälle;

    Sammanfattning : Agricultural management practices geared towards reducing nutrient leaching are in focus for the research presented in this thesis. Critical measures for reducing diffuse pollution from the agricultural sector depend on decisions of individual farmers. LÄS MER

  4. 3. The decline of great Arctic charr in Lake Vättern : empirical and theoretical analyses of suggested causes

    Författare :Malin Setzer; Tomas Jonsson; Bo Ebenman; Mark C. Emmerson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Naturvetenskap;

    Sammanfattning : Human activity is affecting species and ecosystems all over the world. In aquatic systems negative trends can be seen for many fish stocks and potential consequences of this, for ecosystem structure and functions, are of particular concern. LÄS MER

  5. 4. Welfare measurement, externalities and Pigouvian taxation in dynamic economies

    Författare :Kenneth Backlund; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Welfare Measurement; Externalities; Pigouvian Taxes; Global Warming; Nuclear Power; Noncooperative Nash Game; Välfärdsteori; Skatteväxling;

    Sammanfattning : This thesis consists of five papers.Paper [1] analyzes one possible way of replacing dynamic Pigouvian taxes by a static approximation of such taxes from the point of view of social accounting. The idea is to approximate a Pigouvian emission tax by using the instantaneous marginal willingness to pay to reduce the stock of pollution. LÄS MER

  7. 5. Model reduction for diffusion systems

    Författare :Bharath Bhikkaji; Torsten Söderström; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal Processing; Signalbehandling;

    Sammanfattning : Diffusion phenomena has been studied with a lot of interest, for a long time, due to its historical and practical significance. In the recent days it has thrown a lot of interest among control engineers, as more and more practical systems, varying from stock markets to environmental pollution, have been observed to involve diffusion. LÄS MER