Superlakes, megafloods, and abrupt climate change Superlakes, megafloods, and abrupt climate changev. 301No. 5635922–923Clarke, G., Leverington, D., Teller, J., and Dyke, A. 2003. "Superlakes, megafloods, and abrupt climate change." Science, 301, (5635) 922–923.More...ID: 32378Type: articleKeywords: NASM; NASM-CEPS