This paper describes two mitigation scenarios leading to the stabilization of atmospheric CO<Subscript>2</Subscript> concentrations at 550 and 750ppm. These mitigation scenarios are developed from the A2-ASF baseline scenario, which characterizes a regionalized world with continuous population growth (to about 15...</subscript>

Traditionally, economic analyses of greenhouse gas (GHG) mitigation focused on carbon dioxide (CO2) emissions from energy sources, while nonCO2 GHGs were not incorporated into the studies, due to the lack of data on abatement costs of non-CO2 GHGs. In recent years, however, increasing attention...

Learning-i.e. the acquisition of new information that leads to changes in our assessment of uncertainty-plays a prominent role in the international climate policy debate. For example, the view that we should postpone actions until we know more continues to be influential. The latest work on...

Learning – i.e. the acquisition of new information that leads to changes in our assessment of uncertainty – plays a prominent role in the international climate policy debate. For example, the view that we should postpone actions until we know more continues to be influential. The latest work...