Dams

Darcy, Henry

Data, Databases, and Decision-Support Systems

Davis, William Morris

Demand Management

Desalinization

Desert Hydrology

Developing Countries, Issues in

Douglas, Marjory Stoneman

Drinking Water and Society

Drinking-Water Treatment

Drought Management

Earle, Sylvia

Earth: The Water Planet

Earth's Interior, Water in the

Ecology, Fresh-Water

Ecology, Marine

Economic Development

El Niño and La Niña

Endangered Species Act

Energy from the Ocean

Environmental Movement, Role of Water in the