Risk assessment and environmental benefits analysis.

Social Sciences

• Environmental benefits 100%
• risk assessment 74%
• air 60%
• uncertainty 57%
• health risk 26%
• social welfare 24%
• demand 17%
• regulation 14%
• lack 13%
• health 11%

Earth & Environmental Sciences

• air quality 64%
• risk assessment 58%
• social welfare 35%
• quality standard 25%
• health risk 22%
• analysis 20%
• regulation 17%
• health 17%
• demand 16%
• policy 15%