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The paper investigates what kind of economic system would favor research and deployment of Solar Radiation Management (SRM), especially sulfur based stratospheric aerosol injection (SAI). The political economy argument combines moral, economic, and political assumptions in order to reach a credible "fitting"-judgement. After presenting some normative ideas on climate ethics, the concept of political economy (PE) is explained. Variants of capitalism are distinguished. These considerations are substantiated by investigating the relation between the U.S. economic system and recent support for SRM, especially for SAI. The paper concludes that the U.S. economic system has strong affinities to SRM supported by an emerging agency network that tries to establish a pro-SRM narrative and launch SAI research initiatives. There is recent evidence that SRM has found support from policy makers. To supporters of "green" variants of capitalism, the main claims of the article provide reasons against SAI-research. The article finishes with some remarks why SAI-research should be conditional.

SUPPLY RESTRICTING DRUG POLICY IS INEFFICIENT FROM AN ECONOMIC POINT OF VIEW, BUT IS NEVERTHELESS WIDELY USED. THIS PAPER EXPLAINS THIS PHENOMENON AS INDIVIDUALLY RATIONAL BEHAVIOR FOR LOCAL GOVERNMENT. BECAUSE SUPPLY RESTRICTION GIVES ADDICTS AND INCENTIVE TO MIGRATE IT HAS AN EXTERNAL EFFECT. THIS EFFECT MAKES A POLICY OF SUPPLY RESTRICTIONS INDIVIDUALLY RATIONAL BUT LEADS TO SOCIALLY WASTEFUL COMPETITION BETWEEN LOCAL GOVERNMENTS IN A FEDERAL SYSTEM.

Aus Sicht der DDR

© 2018 The Royal Society of Chemistry. Solar-powered electrochemical production of hydrogen through water electrolysis is an active and important research endeavor. However, technologies and roadmaps for implementation of this process do not exist. In this perspective paper, we describe potential pathways for solar-hydrogen technologies into the marketplace in the form of photoelectrochemical or photovoltaic-driven electrolysis devices and systems. We detail technical approaches for device and system architectures, economic drivers, societal perceptions, political impacts, technological challenges, and research opportunities. Implementation scenarios are broken down into short-term and long-term markets, and a specific technology roadmap is defined. In the short term, the only plausible economical option will be photovoltaic-driven electrolysis systems for niche applications. In the long term, electrochemical solar-hydrogen technologies could be deployed more broadly in energy markets but will require advances in the technology, significant cost reductions, and/or policy changes. Ultimately, a transition to a society that significantly relies on solar-hydrogen technologies will benefit from continued creativity and influence from the scientific community.

Solar powered electrochemical production of hydrogen through water electrolysis is an active and important research endeavor. However, technologies and roadmaps for implementation of this process do not exist. In this perspective paper, we describe potential pathways for solar hydrogen technologies into the marketplace in the form of photoelectrochemical or photovoltaic driven electrolysis devices and systems. We detail technical approaches for device and system architectures, economic drivers, societal perceptions, political impacts, technological challenges, and research opportunities. Implementation scenarios are broken down into short term and long term markets, and a specific technology roadmap is defined. In the short term, the only plausible economical option will be photovoltaic driven electrolysis systems for niche applications. In the long term, electrochemical solar hydrogen technologies could be deployed more broadly in energy markets but will require advances in the technology, significant cost reductions, and or policy changes. Ultimately, a transition to a society that significantly relies on solarhydrogen technologies will benefit from continued creativity and influence from the scientific community

Solar-powered electrochemical production of hydrogen through water electrolysis is an active and important research endeavor. However, technologies and roadmaps for implementation of this process do not exist. In this perspective paper, we describe potential pathways for solar-hydrogen technologies into the marketplace in the form of photoelectrochemical or photovoltaic-driven electrolysis devices and systems. We detail technical approaches for device and system architectures, economic drivers, societal perceptions, political impacts, technological challenges, and research opportunities. Implementation scenarios are broken down into short-term and long-term markets, and a specific technology roadmap is defined. In the short term, the only plausible economical option will be photovoltaic-driven electrolysis systems for niche applications. In the long term, electrochemical solar-hydrogen technologies could be deployed more broadly in energy markets but will require advances in the technology, significant cost reductions, and/or policy changes. Ultimately, a transition to a society that significantly relies on solar-hydrogen technologies will benefit from continued creativity and influence from the scientific community.