Scenarios can be useful tools in international environmental assessments for evaluating future environmental problems, and this report is intended to contribute to improving scenario-building and analysis for decision-makers. It proposes a step-wise approach to scenario development and draws on...

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,...