Environment & Climate Change

"A successful international climate policy framework will have to meet two conditions, build a coalition of countries that is potentially effective and give each member country sufficient incentives to join and remain in this coalition. Such coalition should be capable of delivering ambitious emission reduction even if some countries do not take mitigation action. In addition, it should meet the target without exceedingly high mitigation costs and deliver a net benefit to member countries as a whole. The novel contribution of this paper is mostly methodological, but it also adds a better qualification of well-known results that are policy relevant."

In pursuit of a workable successor to the Kyoto Protocol, this study offers a framework of formulas that produces precise numerical targets for emissions of carbon dioxide (CO2) and other greenhouse gases, in all regions of the world in all decades of this century....Firms, consumers, and researchers base their current decisions to invest in plant and equipment, consumer durables, or new technological possibilities on the expected future price of carbon: If government commitments are not credible from the start, then they will not raise the expected future carbon price.

Despite an enormous amount of work done to persuade the world of the dangers of climate change and the need for quick corrective action, there is little progress toward a global compact for managing climate change. In fact, there are some basic differences of perspectives on climate change policies between developed and developing countries which may bedevil future global agreements on climate change for quite some time. Among the reasons for these differences are the issues of historical responsibility for carbon emission by the developed countries, the need for lifestyle changes in both the developed and developing countries, suspicion in the developing countries about the motives of developed countries and too much focus of current discussions on the very long-term and global effects of climate change.