Naturwissenschaftliche Fragen rund um den Klimawandel sind von Naturwissenschaftlern zu beantworten. Ökonomen und Wirtschaftsethiker können jedoch dazu beitragen, den Klimawandel und mögliche Gegenmaßnahmen zu bewerten. Dabei ist ein einheitlicher Preis für die Emission von Treibhausgasen...

We propose a simple mechanism providing incentives to reduce harmful emissions to their efficient level without infracting upon productive efficiency. The mechanism employs a contest creating incentives among participating nations to simultaneously exert efficient productive and efficient...

This article proposes a way of introducing some organization and tractability in climate science, generating more widely credible evaluations of climate science, and imposing some discipline on the processing and interpretation of climate information. I propose a two-part policy instrument...

This article analyzes the international emissions trading regime at the heart of the world's effort to address global warming as a means of exploring broader international governance issues. The trading regime seeks to marry two models of global governance, market liberalism, which embraces...

Die Klima-Konferenz in Bali ist zu Ende, der Weg zu einem neuen internationalen Klimaabkommen aber alles andere als klar. Doch schon heute steht fest: Die massive Absenkung der weltweiten Treibhausgasemissionen wird sich durch strikte Vorgaben allein wohl kaum erreichen lassen - dazu sind die...

Linkage of different countries' domestic permit markets for pollution rights into a single international market alters governments' incentives, and may trigger adjustments of the number of allocated permits. First, this work finds that in a non-cooperative equilibrium, international emissions...

To meet their Kyoto targets under the Burden Sharing Agreement, most European countries plan to make use of the flexible project mechanisms "Clean Development Mechanism" (CDM) and "Joint Implementation" (JI). In addition, CDM and JI credits can be used by installations to fulfil their...

This paper analyzes hybrid emissions trading systems (ETS) under partitioned environmental regulation when firms’ abatement costs and future emissions are uncertain. We show that hybrid policies that introduce bounds on the price or the quantity of abatement provide a way to hedge against...

The current EU proposal on greenhouse gas emission reduction has 28 targets for 2020: an EU-wide one for carbon dioxide emissions covered by the European Trading System, and one target for non-ETS emission per Member State. Implementation is necessarily more expensive than needed. I consider...

To show global leadership and to foster the international negotiations for a long term international climate regime the EU has decided to reduce its GHG emissions by 20% relative to 1990 until the year 2020. These reductions will even rise to 30% "if there is an international agreement...