News Wires, White Papers, and Books
- Lakes: Physical Processes
- Lamarck, Jean-Baptiste French naturalist 1744–1829
- Land Use and Water Quality
- Land-Use Planning
- Landfills: Impact on Groundwater
- Laser Propulsion
- Lasers in Space
- Launch Facilities
- Launch Industry
- Launch Management
- Launch Services
- Launch Sites
- Launch Vehicles, Expendable
- Law of Space
- Law, International Water
- Lawrence, Ernest
- Leakey Family
- Leakey, Louis and Mary
- Leclanché, Georges
- Legislation, Federal Water