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- Lundmark, Tomas, et al.
(författare)
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Potential Roles of Swedish Forestry in the Context of Climate Change Mitigation
- 2014
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Ingår i: Forests. - Basel, Switzerland : MDPI AG. - 1999-4907. ; 5:4, s. 557-578
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Tidskriftsartikel (refereegranskat)abstract
- In Sweden, where forests cover more than 60% of the land area, silviculture and the use of forest products by industry and society play crucial roles in the national carbon balance. A scientific challenge is to understand how different forest management and wood use strategies can best contribute to climate change mitigation benefits. This study uses a set of models to analyze the effects of different forest management and wood use strategies in Sweden on carbon dioxide emissions and removals through 2105. If the present Swedish forest use strategy is continued, the long-term climate change mitigation benefit will correspond to more than 60 million tons of avoided or reduced emissions of carbon dioxide annually, compared to a scenario with similar consumption patterns in society but where non-renewable products are used instead of forest-based products. On average about 470 kg of carbon dioxide emissions are avoided for each cubic meter of biomass harvested, after accounting for carbon stock changes, substitution effects and all emissions related to forest management and industrial processes. Due to Sweden’s large export share of forest-based products, the climate change mitigation effect of Swedish forestry is larger abroad than within the country. The study also shows that silvicultural methods to increase forest biomass production can further reduce net carbon dioxide emissions by an additional 40 million tons of per year. Forestry’s contribution to climate change mitigation could be significantly increased if management of the boreal forest were oriented towards increased biomass production and if more wood were used to substitute fossil fuels and energy-intensive materials.
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| 2. |
- Nordin, Annika
(författare)
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Method and system for sanitization of pathogen containing liquid waste in composting applications
- 2014
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Patent (övrigt vetenskapligt/konstnärligt)abstract
- A method and system for sanitization of a liquid waste product comprising a first step of subjecting said waste to biological treatment under aerobic conditions resulting in a temperature increase producing a fermented and heated product, and a second step wherein the pH of said fermented and heated product is adjusted to an alkaline pH and incubated for a time sufficient to eliminate or reduce the concentration of pathogens in said waste.
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| 3. |
- Nordin, Annika, et al.
(författare)
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Pathogen and indicator inactivation in source-separated human urine heated by the sun
- 2013
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Ingår i: Journal of Water, Sanitation and Hygiene for Development. - : IWA Publishing. - 2043-9083 .- 2408-9362. ; 3, s. 181-188
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Tidskriftsartikel (refereegranskat)abstract
- Source-separation of urine enables energy-efficient recycling of large quantities of high quality plant nutrients from the wastewater system to food production. To manage the risk of diseases transmission the urine should be sanitised, which is commonly done by storage. The sanitisation of urine at three ambient exposures, resulting in fluctuating storage temperatures, was studied in 10 L plastic jerry cans in Kampala, Uganda. Follow-up studies using similar temperature cycles were performed under laboratory conditions. Daily mean mid-point temperature in jerry cans in full sun, adjacent to a wall and indoors was 24, 24 and 22 degrees C (amplitude 7.5, 4.7 and 1.2 degrees C), respectively. In urine stored at full sun (total ammonia nitrogen 4 +/- 1.5 g L-1, pH 9) Escherichia coli, Salmonella and Enterococcus spp. (initially 10(5)-10(6) cfu mL(-1)) were not detected (<10(1) cfu mL(-1)) after 11 h, 14 h and 50 d, respectively. No viable Ascaris suum eggs were found after 40 d. The t(90) for enterobacteria phage MS2, coliphage Phi X 174 and Salmonella typhimurium phage 28B in sun-exposed cans was 8.2, 37 and 55 d respectively. Fluctuating temperatures in combination with ammonia gave faster inactivation of bacteria and Ascaris suum eggs than the same constant mean temperature.
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| 8. |
- Priebe, Janina, 1986-, et al.
(författare)
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Narrow pasts and futures: how frames of sustainability transformation limit societal change
- 2021
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Ingår i: Journal of Environmental Studies and Sciences. - : Springer Science and Business Media LLC. - 2190-6483 .- 2190-6491. ; 11:1, s. 76-84
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Tidskriftsartikel (refereegranskat)abstract
- Two frames dominate present-day interpretations of sustainability and approaches to sustainability transformation in national and global policy arenas. One frame relates to transformation in global environmental governance that promotes goal-oriented agendas. The other frame relates to earth system sciences where sustainability transformation means breaking the devastating trends of the Anthropocene. In this paper, we examine the historical and cultural underpinnings of these two frames, each invoking particular relations and approaches to sustainability transformation. Our contribution is to discuss the role of the past in these frames and to illuminate how current outlooks toward the future still rely on principles that emerged in eighteenth- and nineteenth-century Europe and thus hinder alternative approaches to transformation in the present.
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