In this paper we present some numerical simulations with the MacGEM model to evaluate the consequences of the recent Marrakesh agreements and the defection of the USA for the Kyoto Protocol. MacGEM is a global marginal abatement cost model for carbon emissions from fossil fuel use based on the...

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...

In this paper we introduce the CLIMNEG World Simulation (CWS) model for simulating cooperative game theoretic aspects of global climate negotiations. The model is derived from the seminal RICE model by Nordhaus and Yang (1996). We first state the necessary conditions that determine optimal...

CCS (carbon dioxide capture and storage) is an issue which has received increasing attention in the debate on climate change over the last several years because of its relative technical simplicity and very large potential in reducing carbon dioxide emissions. The absence of secondary benefits...

A method is presented for computing long-term greenhouse gas emission pathways for both industrial ("Annex B") countries and developing ("non-Annex B") countries. This method combines two main factors: (i) climate protection goals, in the form of targets for stabilising CO2 in the atmosphere,...

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...

Many predictions and conclusions in climate change literature have been made on the basis of theoretical analyses and quantitative models that assume exogenous technological change. One may wonder if those policy prescriptions hold in the more realistic case of endogenously evolving...

International climate protection investments (Joint Implementation and Clean Development Mechanism projects) are burdened with problems of contract enforcement, which prevent the realisation of efficiency gains associated with these investments. The paper analyses this problem from the...

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...