The purpose of the present paper is to describe the role of uncertainty and technical change in an environmental context. Which impact does ecological uncertainty have on physical and R&D investments' decisions? How are pollution trajectories modified when uncertainty is taken into account? To...

Tradable Permits – a Market-Based Allocation System for the Environment. Tradable Permits and Other Environmental Policy Instruments – Killing one Bird with two Stones. Tradable Permits – Ten Key Design Issues. Tradable Permits with Imperfect Monitoring. Emissions Trading with Greenhouse...

The Kyoto Protocol stipulates that industrialised countries and countries with economies in transition, i.e. the group of Annex I countries, shall reduce their overall emissions of carbon dioxide and other five greenhouse gases by at least 5 % as compared to their 1990 emission levels. This...

Sechs Jahre nach der Verabschiedung des Kyoto-Protokolls im Dezember 1997 sind die meisten Länder der internationalen Staatengemeinschaft noch weit von den damals verabredeten Klimaschutzzielen entfernt. Im Jahre 2001 lagen die Treibhausgas-Emissionen in den OECD-Ländern, die im...

When dealing with multiple greenhouse gases, we need some way to establish equivalence among gases. The Intergovernmental Panel on Climate Change (IPCC) has suggested the use of global warming potentials (GWPs) for making such trade-offs. We begin by examining the implications of such an...

Despite large uncertainties in the fertilization efficiency, natural iron fertilization studies and some of the purposeful iron enrichment studies have demonstrated that Southern Ocean iron fertilization can lead to a significant export of carbon from the sea surface to the ocean interior. From...

This paper explains why the approach taken so far to mitigate global climate change has failed. The central reason is an inability to enforce targets and timetables. Current proposals recommending even stricter emission limits will not help unless they are able to address the enforcement...

This article determines the conditions under which the Southern countries should act together, or separately, while negotiating with the North about climate change policy and about the conditions for future Southern engagement. The paper models the international negotiations with complete and...