Science & Technology

An effective international climate agreement poses formidable challenges. Existing agreements, naturally, have some good features. Further improvements are being discussed in the current negotiations. But the cost and uncertainty associated with regular renegotiation of commitments is not being addressed. The São Paulo Proposal suggests mechanisms that would avoid the need for regular renegotiation of commitments and suggests other ways to make international climate agreements more effective.

"Implementing such a linkage is possible. The Montreal Protocol, successfully protecting the ozone layer, is already restricting trade with non-participants and non-compliers, although only in the substances controlled by the treaty. To repeat this success and overcome the obstacles for a climate agreement, signatories should become favoured trading partners while non-compliance should trigger a temporary denial of this status. Disputes can be solved by expanding the mandate of the WTO's dispute settlement body or another mediator."

The São Paulo Proposal is designed to create a stable, long-term, universal regime based on the principles of equity and common but differentiated responsibilities and respective capabilities. Such a regime is required to encourage the technological change and structural shifts necessary to stabilize greenhouse gas concentrations. Richer countries adopt binding targets that become more stringent over time. Financial and institutional provisions to enhance developing country implementation of mitigation and adaptation actions are strengthened.

The Kyoto Protocol uses a top-down mechanism to negotiate economy-wide emissions caps. This paper proposes an alternative "sectoral" approach, which would determine industry-level emissions reduction targets based on technological analyses.