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Dr. Zarrar Khan brings over a decade of experience in climate and energy modeling and advancing sustainable energy solutions, climate mitigation, and resilience initiatives worldwide. He has worked in the U.S., Latin America, Europe, the Middle East, and Asia to help transform groundbreaking research into tangible global impact. Khan has played pivotal roles in developing national climate strategies, enhancing local capacities, and fostering lasting stakeholder relationships. His collaborative efforts to address complex challenges include working with the World Bank, Green Climate Fund, World Resources Institute, U.S. Agency for International Development (USAID), Department of Energy (DOE), Department of State (DOS), and Inter-American Development Bank (IDB). Khan’s scholarly work has been cited over 600 times, demonstrating his impact on global climate resilience and policy development.

A new Abt-developed webtool supports analysis of criminal justice expenditures and employment.

Ricki Jarmon leads the Data Capture & Surveys practice within the Digital & Data Services team. He has more than 30 years of experience in survey research for U.S. government agencies, including the Department of Labor, Food and Nutrition Service, Department of Housing and Urban Development, Social Security Administration, Centers for Disease Control and Prevention, and Administration for Children and Families.

Abt studied staff turnover in nursing homes and found higher turnover was consistently associated with lower quality of care.

This technical appendix describes the practices, data, and methods used in the Evaluation of the Cascades Job Corps College and Career Academy Pilot.

In two reports, Abt identifies the need for a new formula to calculate funding and slow ramp up as reasons for state Emergency Rental Assistance underspending.

Vector control policies will be improved thank to this study’s data on everything from the distribution to the insecticide susceptibility of An. stephensi.

A new paper from Abt and EPA identifies the costs of different processes for removing nitrate and percholate for small drinking water systems.