Reports on the state of the environment and/or health provide a useful basis for periodic reviews of policy. The value of such reporting as a policy guidance tool is enhanced if, in addition to providing factual information on the present and projected state of the environment and health, it explicitly reviews trends in the light of indicators of sustainability.
2. We need a stronger environmental partnership between Europe and the United States.
3. An element of uncertainty is associated with most environmental policy measures. Indicators of policy effectiveness and underlying observing mechanisms are lacking everywhere, from local level initiatives to multilateral agreements. These deficiencies prevent the monitoring and assessment of policy performance.