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More than 2 million units of rental housing have been developed through the Low-Income Housing Tax Credit (LIHTC) program, making it the largest housing production program in U.S. history. As thousands of properties hit the 15-year mark—ending the…

Indonesia needed to adopt environmentally sustainable, low-carbon economic growth for its 250 million people. Among other things, it needed better land-use planning. As part of the Millennium Challenge Corporation (MCC) Green Prosperity (GP) Project, the…

Do pollution prevention projects reduce toxic releases? If so, by how much? Understanding their impact would provide valuable input to efforts to protect the nation’s environment. However, the sheer number — approximately 370,000 projects over 20 years —…

Power plants’ cooling systems often are located along coastal waterways and use large amounts of water from oceans, bays and estuaries. As millions of tiny aquatic organisms in the water such as fish eggs and larvae pass through the power plant, the heat…

Climate change, in particular global warming, inevitably will have an impact on winter recreation. But the effects will differ from one vacation destination to another. The challenge is to understand the effects on activities such as skiing and…

USAID released its climate-resilient development (CRD) framework in March 2014 to ensure consideration of climate issues in development decision-making. The goals included reducing climate vulnerabilities and improving development outcomes. The framework…

The Deepwater Horizon disaster contaminated habitats across the northern Gulf of Mexico, including deep water corals, shallow bays, estuaries, coastal marshes and beaches. The spill affected wildlife ranging from birds to dolphins to sea turtles.  The…

Underground storage tanks (USTs) containing petroleum and other hazardous substances are everywhere. Accidental releases of the substances from leaking USTs (LUSTs) pose serious health, economic, and environmental risks to local residents. Abt helped the…

Federal laws often do not specify every detail of how agencies should implement them. Agencies must use the rulemaking process to do so and seek public comments on the rules. They also seek public comments for other policy and rule changes.  Some attract…

The Chesapeake Bay is the largest estuary in the U.S., encompassing 64,000 square miles and covering parts of six states and Washington DC. In the 1970s, the Bay was discovered to have one of the world’s first identified marine dead zones. Poor water…