I have 20 years of experience, and specialize in the field of biophysical economics with specific knowledge in the areas of the impact of energy on the economy, the impact of coal production on health in coal communities and the impact of high-cost energy on health care markets. I have published on such topics as the impact of coal production on health, the impact of high-cost energy on health care and avoidable hospital admissions. I have testified on global oil depletion, impact of scarce energy on health care and impact of coal production on health in coal communities.