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PNAS profile:
[1]
Comet collision:
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
Methane and greenhouse effect:
[11]
[12]
Gateway hypothesis:
[13]
Google Scholar citations:
[14]
References
^ Davis, T. H. (31 January 2007). "Profile of James P. Kennett". Proceedings of the National Academy of Sciences . 104 (6): 1751–1753.
doi :
10.1073/pnas.0609142104 .
^
"Ice Age blast 'ravaged America' " . BBC News . 21 May 2007. Retrieved 23 September 2017 .
^ Borrell, Brendan (20 July 2009).
"Did a Comet Cause a North American Die-Off around 13,000 Years Ago?" . Scientific American . Retrieved 23 September 2017 .
^ Dalton, Rex (14 May 2011).
"Comet Theory Comes Crashing to Earth" . Pacific Standard . Retrieved 23 September 2017 .
^ Jones, Nicola (3 September 2013).
"Evidence Found for Planet-Cooling Asteroid 12,900 Years Ago" . Scientific American . Retrieved 23 September 2017 .
^ Cohen, Julie (9 March 2017).
"Heavy Metal" . The UCSB Current . University of California Santa Barbara. Retrieved 23 September 2017 .
^ Cohen, Julie (13 April 2017).
"Did a comet cause freeze that killed mammoths? - Futurity" . Futurity . Retrieved 23 September 2017 .
^ Achenbach, Joel (2 January 2009).
"Gems Point to Comet as Answer to Ancient Riddle" . Washington Post . Retrieved 23 September 2017 .
^ Bentley, Molly (2009).
"Diamond clues to beasts' demise" . BBC News . Retrieved 23 September 2017 .
^ Roach, John (23 June 2010).
"Fungi, Feces Show Comet Didn't Kill Ice Age Mammals?" . National Geographic . Retrieved 23 September 2017 .
^ Yamamura, Jean (4 January 2016).
"Warming Icy Methane Adds to Greenhouse Effect" . Santa Barbara Independent . Retrieved 23 September 2017 .
^ Gallessich, Gail (19 July 2006).
"Gas Escaping From Ocean Floor May Drive Global Warming" . The UCSB Current . Retrieved 23 September 2017 .
^
"Shutting the door on Gateway Hypothesis - ScienceBlog.com" . ScienceBlog . 8 September 2014. Retrieved 23 September 2017 .
^
"James P. Kennett - Google Scholar Citations" . scholar.google.com . Retrieved 23 September 2017 .
External links