I have 30 years of experience, and specialize in the field of occupational and environmental medicine with specific knowledge in the areas of HSE (health, safety, environment), worker protection and health promotion. I have published on such topics as occupational and environmental health, wellness and managing occupational health services. I have testified 50 times on topics such as causation, chemical or toxic injury and impairment. I spent one year (2009) as a consultant in Saudi Arabia doing strategic planning for the occupational health unit of Saudi Aramco, the world’s larges oil company. It taught me a lot about sustainability in the dimensions of occupational health, environmental management, energy and culture.