Belcher, C. M., 2009, Reigniting the Cretaceous-Palaeogene firestorm debate. Geology. vol. 37, no. 12, pp. 1147-1148 Abstract and text at: http://geology.gsapubs.org/content/37/12/1147.full.pdf+html PDF file at: http://geology.gsapubs.org/content/37/12/1147.full.pdf+html Yours, Paul H.