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For more than 35 years, Abt has delivered extensive regulatory support services to state and federal clients, including the Environmental Protection Agency, Department of Transportation, Department of Health and Human Services, Department of the Interior, Coast Guard, and Occupational Safety and Health Administration.

Abt helped design the ZAPPA tool so New York City could evaluate the potential impacts of proposed environmental polices, down to the neighborhood level.

Having graduated from EPA’s peer review process, the Abt-designed SWEET tool has been updated to better identify and resolve methane emissions.

On behalf of the Global Methane Initiative, Abt helped the U.S. Environmental Protection Agency develop a handbook to assist with accounting for methane emissions and emissions reduction.

This article compares the benefits of shallow open water areas to emergent restored wetlands in Coastal Louisiana to explore restoration ecosystem benefits.

This article predicts an up-to-30 percent increase in annual losses from riverine flooding due to climate change, and offers approaches to evaluate adaptation.