Sonia Yeh

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Debates surrounding the greenhouse gas (GHG) emissions from land use of biofuels production have created a need to quantify the relative land use GHG intensity of fossil fuels. When contrasting land use GHG intensity of fossil fuel and biofuel production, it is the energy yield that greatly distinguishes the two. Although emissions released from land(More)
This paper reviews the regulatory history for nitrogen oxides (NOx) pollutant emissions from stationary sources, primarily in coal-fired power plants. Nitrogen dioxide (NO2) is one of the six criteria pollutants regulated by the 1970 Clean Air Act where National Ambient Air Quality Standards were established to protect public health and welfare. We use(More)
The phenomenon of technological learning has been observed across a wide spectrum of energy and environmental technologies. Quantitative modeling of experience curves has become an increasingly common method of representing endogenous technical change in long-term integrated assessment models used for energy and environmental policy analysis. However, many(More)
California has taken a leading role in regulating greenhouse gas (GHG) emissions, requiring that its economy-wide emissions be brought back down to the 1990 level by 2020. The state also has a long-term, aspirational goal of an 80 percent reduction below the 1990 level by 2050. While the steps needed to achieve the near-term target have already been clearly(More)
  • Geoffrey M Morrison, Sonia Yeh, Anthony R Eggert, Christopher Yang, James H Nelson, Jeffery B Greenblatt +5 others
  • 2015
Jurisdictions throughout the world are contemplating greenhouse gas (GHG) miti-gation strategies that will enable meeting long-term GHG targets. Many jurisdictions are now focusing on the 2020–2050 timeframe. We conduct an inter-model comparison of nine California statewide energy models with GHG mitigation scenarios to 2050 to better understand common(More)
We model the California Energy System to 2050 under policy and technology scenarios. The model optimizes technology and resource investments to meet emissions targets. Deep emissions cuts (474%) are achieved across all reduction scenarios. Carbon capture enables negative emission biofuels and allows more petroleum use. Greenhouse gas mitigation cost is(More)
  • Hannah Daly, Kalai Ramea, Alessandro Chiodi, Sonia Yeh, Maurizio Gargiulo, Brian P Ó Gallachóir
  • 2012
Climate change mitigation clearly requires a focus on transport that should include improved representation of travel behavior change in addition to increased vehicle efficiency and low-carbon fuels. Most available energy/ economy/ environment modelling tools focus however on technology and fuel switching and tend to poorly incorporate travel behavior. The(More)
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