More than 30 years experience in public health, environmental health, international development and policy. Retired as senior advisor in Pan American Health Organization/World Health Organization. Lived and worked in Latin America and South Asia for 10+ years; trilingual. Combining research, conceptual modeling and data analysis to generate public health and environmental strategies and policies. More than 20 peer reviewed publications plus book chapters. Former USAID and California EPA official. Experience in high level international cooperation and policy.