Sökning: "anthropogenic pollution"

Visar resultat 21 - 25 av 81 avhandlingar innehållade orden anthropogenic pollution.

1. 21. Effect of elevated pCO2 and environmental oxazepam on the behavior and physiology of teleost fish

   Författare :Laura E. Vossen; Svante Winberg; Robert Gerlai; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; fish; GABA; CO2; ocean acidification; pharmaceutical pollution; oxazepam;

   Sammanfattning : This doctoral thesis investigated the effect of two aquatic pollutants on the behavior and physiology of teleost fish: i) elevated concentrations of carbon dioxide (CO2) in the context of ocean acidification and ii) low concentrations of the anxiolytic pharmaceutical oxazepam in the context of pharmaceutical pollution.Anthropogenic emissions of CO2 are lowering the pH of the oceans. LÄS MER

3. 22. Understanding the urban ecosystem : interactions between plants, animals, and people

   Författare :Johan Kjellberg Jensen; Evolutionär ekologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; air pollution; avian physiology; fatty acids; human-nature interactions; nature connection; non-native plants; nutrition; trophic interactions; urban ecology; urbanization; air pollution; avian physiology; fatty acids; human-nature interactions; nature connection; non-native plants; nutrition; trophic interactions; urban ecology; urbanization;

   Sammanfattning : Cities are the pinnacle of human change to the environment, creating unique types of ecosystems which present many challenges to local organisms: habitat fragmentation, introduced species, and various pollutants. Being crucibles of anthropogenic effects, urban ecosystems offer opportunities to understand how humans impact nature. LÄS MER

4. 23. Climate Change and Industrial Technology Transfer. A Study of Chinese Conditions

   Författare :Joakim Nordqvist; Miljö- och energisystem; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environment; Emissions; China; Development; Bureaucracy; Cement; Miljöteknik; kontroll av utsläpp; pollution control; Environmental technology; Technology management; Sustainability; Policy; Energy; Modernisation;

   Sammanfattning : Motivated by concerns about anthropogenic climate change, this thesis contributes to the better appreciation of mechanisms that would allow actors in China, foreign as well as Chinese, to exert a positive influence on the country's industrial technology status. China is the world's second largest emitter of greenhouse gases - the lions' share of which emanates from industrial and electricity production. LÄS MER

5. 24. Multiple perspectives on absorbing aerosols over the northern Indian Ocean and Asia

   Författare :Friederike Höpner; Frida Bender; Annica Ekman; Heike Wex; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aerosols; black carbon; air pollution; South Asia; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

   Sammanfattning : Aerosol particles in the atmosphere scatter and absorb solar radiation, and thereby affect the Earth's energy budget, but the magnitude of the overall radiative effect due to aerosol-radiation interactions is uncertain. In particular, the impact of absorbing aerosol particles, mainly black carbon (BC), organic carbon and dust, is not completely understood. LÄS MER

7. 25. Biomass in a Sustainable Energy System

   Författare :Pål Börjesson; Miljö- och energisystem; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kontroll av utsläpp; Miljöteknik; pollution control; Environmental technology; economic valuation; environmental impact; carbon dioxide; Biomass; energy efficiency; Energiforskning; Energy research;

   Sammanfattning : The increased use of biomass for energy is as a key strategy in reducing carbon dioxide (CO2) emission, which represents the largest anthropogenic contribution to the greenhouse effect. In this thesis, aspects of an increase in the utilisation of biomass in the Swedish energy system are treated. LÄS MER