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Comparing the Effects of Greenhouse Gas Emissions on Global Warming

Richard S. Eckaus

Year: 1992
Volume: Volume 13
Number: Number 1
DOI: 10.5547/ISSN0195-6574-EJ-Vol13-No1-2
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Abstract:
This paper analyses the usefulness as a policy tool of a physical index of radiative forcing of a greenhouse gas, the Global Warming Potential (GWP), as proposed by the Intergovernmental Panel on Climate Change. It is shown that the economic opportunity costs of an increment in radiative forcing will vary over time, while the GWP implicitly sets these costs equal. The GWP can, therefore, play no role in policy making.



The Role of Non-CO2 Greenhouse Gases and Carbon Sinks in Meeting Climate Objectives

Alan S. Manne and Richard G. Richels

Year: 2006
Volume: Multi-Greenhouse Gas Mitigation and Climate Policy
Number: Special Issue #3
DOI: 10.5547/ISSN0195-6574-EJ-VolSI2006-NoSI3-20
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Abstract:
When conducting a multi-gas analysis, there are distinct advantages in moving from concentrations to radiative forcing. With the former, it is customary to use Global Warming Potentials (GWPs) for making tradeoffs among greenhouse gases. A number of studies have shown the arbitrariness of this approach and have argued that tradeoffs should be based on the contribution of each gas to achieving a particular target.1 Focusing on radiative forcing bypasses the need to rely on GWPs and provides for tradeoffs among gases based on their relative value.



Which Way to Choose? A Generic Modular Life Cycle Assessment for Hydrogen Production and Import Pathways to Germany

Christina Kockel, Jakob Kulawik, David Wohlleben, and Aaron Praktiknjo

Year: 2024
Volume: Volume 45
Number: Special Issue
DOI:
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Abstract:
Hydrogen is set to become a cornerstone of global low-carbon energy systems globally. This study uses Germany as a case study to examine various hydrogen production and import pathways, with a focus on their Global Warming Potential (GWP). Employing a modular life cycle assessment, we identify and evaluate the primary environmental drivers across these pathways, which include production, conversion, transportation, and reconversion stages. Our findings highlight the significance of the electricity source for hydrogen production and conversion, as well as the efficiency of subsequent processes, including carbon capture rates for blue hydrogen, as critical factors influencing GWP. The necessity for hydrogen imports in countries with high demand and limited domestic production underscores the importance of optimizing hydrogen supply chains for reduced CO2 emissions. This analysis offers valuable insights for advancing sustainable energy transitions in other high-demand regions as well.





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