This study assesses the environmental integrity risks of international carbon markets under Article 6 of the Paris Agreement and discusses possible international rules to address them. A considerable risk is that several countries have mitigation targets that correspond to higher levels of emissions than business-as-usual (BAU) projections.

This report details a study on whether countries should use certified emission reductions – or CERs – to achieve post-2020 targets under the Paris Agreement. The Clean Development Mechanism is the world’s largest greenhouse gas crediting mechanism and will continue to issue CERs until 2020.