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- 9Greenhouse gas emissions
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Utilization of renewable bioenergy is a sustainable approach to reducing greenhouse gas (GHG) emissions. However, efficient use of this resource is hindered by the current knowledge-gaps concerning collecting and processing dispersed biomass from large areas. This study focuses on developing...
Carbon management in New Zealand local government: Co-benefits of action and organizational resolve in the absence of government supportDownload
In an effort to promote public sector carbon management, in 2004, New Zealand’s (NZ) Labour-led government funded local government membership in the Communities for Climate Protection - New Zealand (CCP-NZ) program, the NZ arm of ICLEI’s Cities for Climate Protection campaign. In late 2008 the...
Provided that infectious prions (PrPTSE) are inactivated, composting of specified risk material (SRM) may be a viable alternative to rendering and land filling. The overall objective of this research was to utilize laboratory-scale composters to assess the degradation of SRM and PrPTSE during...
Effect of Diluent Levels on Greenhouse Gases and Reduced Sulfur Compound Emissions from Oil Sands TailingsDownload
A well-known issue of tailings is that they have poor consolidation properties, which, in situ, may require several decades or more before the material can be reclaimed. With the accumulation of tailings in the tailings ponds, one unintended consequence of this long-term storage is the evolution...
Climate change has the potential to dramatically change the world as we know, both in terms of the environment and the way in which societies operate. Public policy responses to climate change continue to evolve, with many western economies proposing mechanisms for emission reductions, for...
Hydrogen can be produced from biomass; this hydrogen is called biohydrogen. Biohydrogen produced in Western Canada can partially contribute to meeting the demand for hydrogen needed for bitumen upgrading. Gasification and pyrolysis are two promising pathways for producing biohydrogen in a...
Quantifying Greenhouse Gas Emissions from an Oil Sands Tailings Pond using Micrometeorological Flux Measurement TechniquesDownload
The focus of this thesis is the use of micrometeorological techniques to quantify the flux of trace gases from surface area sources to the atmosphere. In particular, it is an investigation into the feasibility of using such techniques, specifically the eddy covariance and inverse dispersion...
In this thesis, an indirect methodology for estimating gas emission rate to the atmosphere from small surface point or area sources is investigated. More specifically, the thesis is a study of an“inverse dispersion” method which has become widely used for estimating ground-air gas fluxes (Q) from...
Tillage Reversal and Nitrogen Fertilization Affected Greenhouse Gas Emissions and Soil Carbon Stability Differently in a Black Chernozem and a Gray LuvisolDownload
Improving soil carbon (C) sequestration through land management practices is of great interest due to concerns over global climate change caused by increased atmospheric greenhouse gas (GHG) concentrations. Soil disturbance by conventional tillage (CT) generally accelerates soil organic carbon...