Modal Differences in Fuel Efficiency and Greenhouse Gas Emissions

2013 ◽  
pp. 73-80
Author(s):  
Luis C. Blancas ◽  
M. Baher El-Hifnawi
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Fuel Efficiency ◽  
Gas Emissions

scholarly journals Fisheries for the future: greenhouse gas emission consequences of different fishery reference points

2020 ◽  
Vol 77 (5) ◽  
pp. 1666-1671
Author(s):  
Sara Hornborg ◽  
Anthony D M Smith
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Fuel Efficiency ◽  
Fishing Effort ◽  
Reference Points ◽  
Production Model ◽  
Fuel Use ◽  
Gas Emissions ◽  
Fishing Vessels

Abstract Global fisheries have for long been scrutinized in terms of ecosystem effects but only more recently for their greenhouse gas emissions. These emissions are dominated by fuel use on fishing vessels and the levels are often neglected side effects of resource overexploitation. Using a simple production model, Pella-Tomlinson, we illustrate how fuel efficiency (fuel use per unit of catch) varies with the level of exploitation and biomass depletion. For this model, fuel use per unit catch rises hyperbolically with fishing effort—it is relatively flat at low levels of effort but rises steeply as effort increases and biomass and catch decline. In light of these findings, the general fuel efficiency relationship with common fishery reference points on stock status is discussed, as well as other means of reducing fuel use and thus greenhouse gas emissions. We conclude that much may be gained by considering fuel efficiency in setting reference points for target stock biomass in fisheries and encourage further investigations.

scholarly journals Fuel efficiency standards’ roles in reducing greenhouse gas emissions and air pollutants

2019 ◽  
Author(s):  
Wenfa Ng
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Environmental Sustainability ◽  
Air Pollutants ◽  
Fossil Fuels ◽  
Fuel Efficiency ◽  
Specific Weight ◽  
Finite Limit ◽  
Gas Emissions

Fuel efficiency standards are often touted to help reduce greenhouse gases and air pollutants’ emissions, but where does the correlation ends, and does a limit exists on fuel efficiency? Specifically, is there a limit beyond which fuel efficiency of vehicles running on fossil fuels could not be improved further? And what is a better yardstick for environmental sustainability for electric and hybrid vehicles? Could energy efficiency calculated based on the efficiency in which energy is used in transporting a specific weight per kilometer be used in place of fuel efficiency? Searching for answers to the above questions, this analysis describes the conceptual underpinning of how improving fuel efficiency is related to the reduction of greenhouse gas emissions and common air pollutants (such as nitrous oxide, sulphur dioxide, carbon monoxide etc.), but expounds on whether a finite limit exists in fuel efficiency for gasoline powered vehicles, as well as whether energy efficiency would be a better environmental sustainability measure for vehicles moving forward, especially with the use of renewable energy for charging electric vehicles.

scholarly journals Fuel efficiency standards’ roles in reducing greenhouse gas emissions and air pollutants

2019 ◽  
Author(s):  
Wenfa Ng
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Environmental Sustainability ◽  
Air Pollutants ◽  
Fossil Fuels ◽  
Fuel Efficiency ◽  
Specific Weight ◽  
Finite Limit ◽  
Gas Emissions

Fuel efficiency standards are often touted to help reduce greenhouse gases and air pollutants’ emissions, but where does the correlation ends, and does a limit exists on fuel efficiency? Specifically, is there a limit beyond which fuel efficiency of vehicles running on fossil fuels could not be improved further? And what is a better yardstick for environmental sustainability for electric and hybrid vehicles? Could energy efficiency calculated based on the efficiency in which energy is used in transporting a specific weight per kilometer be used in place of fuel efficiency? Searching for answers to the above questions, this analysis describes the conceptual underpinning of how improving fuel efficiency is related to the reduction of greenhouse gas emissions and common air pollutants (such as nitrous oxide, sulphur dioxide, carbon monoxide etc.), but expounds on whether a finite limit exists in fuel efficiency for gasoline powered vehicles, as well as whether energy efficiency would be a better environmental sustainability measure for vehicles moving forward, especially with the use of renewable energy for charging electric vehicles.

Low-Carbon Russia: Prospects after the Crisis

2009 ◽  
pp. 107-120 ◽  
Author(s):  
I. Bashmakov
Keyword(s):  
Economic Growth ◽  
Potential Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Low Carbon ◽  
Modeling Tools ◽  
Gas Emissions ◽  
Scenario Approach

On the eve of the worldwide negotiations of a new climate agreement in December 2009 in Copenhagen it is important to clearly understand what Russia can do to mitigate energy-related greenhouse gas emissions in the medium (until 2020) and in the long term (until 2050). The paper investigates this issue using modeling tools and scenario approach. It concludes that transition to the "Low-Carbon Russia" scenarios must be accomplished in 2020—2030 or sooner, not only to mitigate emissions, but to block potential energy shortages and its costliness which can hinder economic growth.

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