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- Kurt Lambeck, Australian, cryosphere-hydrosphere-lithosphere interactions, and sea level rise and its impact on human populations.
- Richard Lindzen (1940- ), American, dynamic meteorology, especially planetary waves.
- Edward Norton Lorenz (1917–2008), American, discovery of the strange attractor notion and coined the term butterfly effect.
- James Lovelock (1919- ), British, Gaia hypothesis and biotic feedbacks.
Read more about this topic: List Of Climate Scientists