By Erik Haites
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.
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.