- landscape and the parental 1
- (loss of) 1
- Law, R. 1 n
- Lear, Edward 1
- Lévi-Strauss, Claude 1
- Lightning, HMS 1
- light (under water) 1, 2, 3
- (in space) 1
- Lim Ah Hong 1
- limen 1, 2
- Linnaeus, Carl 1, 2, 3
- Linton, Edwin 1 n
- ‘living fossils’ 1, 2, 3
- Livy 1
- Loch Leven Castle 1
- Loch Ness Monster 1
- Lockerbie 1
- Lophelia pertusa (cold water coral) 1 n
- Lord Howe Is. 1
- Lovelock, James 1
- Lusitania 1
- Luther, Martin 1
- Lyell, Charles 1, 2, 3, 4, 5, 6, 7