Land Use and Water Quality

Land-Use Planning

Landfills: Impact on Groundwater

Landslides

Law, International Water

Law of the Sea

Law, Water

Legislation, Federal Water

Legislation, State and Local Water

Leonardo da Vinci

Leopold, Luna

Lewis, Meriwether and William Clark

Life in Extreme Water Environments

Life in Water

Light Transmission in the Ocean

Marginal Seas

Mariculture

Marine Mammals

Markets, Water

Mars, Water on

Microbes in Groundwater

Microbes in Lakes and Streams