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Carmen Difiglio

Bio: Carmen Difiglio is an academic researcher from International Energy Agency. The author has contributed to research in topics: Greenhouse gas & Green vehicle. The author has an hindex of 3, co-authored 3 publications receiving 1727 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, a review of some of the relevant literature from the US offers definitions and identifies sources including direct, secondary, and economy-wide sources and concludes that the range of estimates for the size of the rebound effect is very low to moderate.

1,867 citations

Journal ArticleDOI
01 Jul 2000-Energy
TL;DR: In this paper, an analysis of alternative policies and measures for reducing greenhouse gas emissions in the US light-duty vehicle sector to specified levels by 2010 and beyond (to 2030) is presented.

15 citations

Journal ArticleDOI
TL;DR: In this paper, a full fuel cycle analysis is used to compare the energy use and carbon (C) emissions of different fuel and vehicle strategies, as well as cost-effectiveness estimates.
Abstract: If hydrogen (H2) is to significantly reduce greenhouse gas emissions and oil use, it needs to displace conventional transport fuels and be produced in ways that do not generate significant greenhouse gas emissions. This paper analyses alternative ways H2 can be produced, transported and used to achieve these goals. Several H2 scenarios are developed and compared to each other. In addition, other technology options to achieve these goals are analyzed. A full fuel cycle analysis is used to compare the energy use and carbon (C) emissions of different fuel and vehicle strategies. Fuel and vehicle costs are presented as well as cost-effectiveness estimates. Lowest hydrogen fuel costs are achieved using fossil fuels with carbon capture and storage. The fuel supply cost for a H2 fuel cell car would be close to those for an advanced gasoline car, once a large-scale supply system has been established. Biomass, wind, nuclear and solar sources are estimated to be considerably more expensive. However fuel cells cost much more than combustion engines. When vehicle costs are considered, climate policy incentives are probably insufficient to achieve a switch to H2. The carbon dioxide (CO2) mitigation cost would amount to several hundred US$ per ton of CO2. Energy security goals and the eventual need to stabilize greenhouse gas concentrations could be sufficient. Nonetheless, substantial development of related technologies, such as C capture and storage will be needed. Significant H2 use will also require substantial market intervention during a transition period when there are too few vehicles to motivate widely available H2 refueling.

3 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the authors examine the factors that give rise to food waste throughout the food supply chain, and propose a framework to identify and prioritize the most appropriate options for prevention and management of food waste.

1,016 citations

Journal ArticleDOI
TL;DR: The evidence in favour of Jevons Paradox is far from conclusive, but it does suggest that economywide rebound effects are larger than is conventionally assumed and that energy plays a more important role in driving productivity improvements and economic growth than is normally assumed as discussed by the authors.

860 citations

Journal ArticleDOI
TL;DR: In this paper, the authors proposed an empirical specification for motor vehicles based on a simple aggregate model that simultaneously determines vehicle-miles traveled (VMT), vehicles, and fuel efficiency.
Abstract: It has long been realized that improving energy efficiency releases an economic reaction that partially offsets the original energy saving. As the energy efficiency of some process improves, the process becomes cheaper, thereby providing an incentive to increase its use. Thus total energy consumption changes less than proportionally to changes in physical energy efficiency. For motor vehicles, the process under consideration is use of fuel in producing vehicle-miles traveled (VMT). Our empirical specification is based on a simple aggregate model that simultaneously determines VMT, vehicles, and fuel efficiency. The coefficient on the lagged dependent variable implies considerable inertia in behavior, with people adjusting their travel in a given year by just 21 percent of the ultimate response to a permanent change. The equation exhibits only mild autocorrelation, giving people confidence that their specification accounts for most influences that move sluggishly over time.

838 citations

BookDOI
01 Oct 2012
TL;DR: The Global Energy Assessment (GEA) as mentioned in this paper brings together over 300 international researchers to provide an independent, scientifically based, integrated and policy-relevant analysis of current and emerging energy issues and options.
Abstract: The Global Energy Assessment (GEA) brings together over 300 international researchers to provide an independent, scientifically based, integrated and policy-relevant analysis of current and emerging energy issues and options. It has been peer-reviewed anonymously by an additional 200 international experts. The GEA assesses the major global challenges for sustainable development and their linkages to energy; the technologies and resources available for providing energy services; future energy systems that address the major challenges; and the policies and other measures that are needed to realize transformational change toward sustainable energy futures. The GEA goes beyond existing studies on energy issues by presenting a comprehensive and integrated analysis of energy chalenges, opportunities and strategies, for developing, industrialized and emerging economies. This volume is a invaluable resource for energy specialists and technologists in all sectors (academia, industry and government) as well as policymakers, development economists and practitioners in international organizations and national governments.

812 citations