Extraterrestrial Impact Preceded Ancient Global Warming Event
By Mary L. Martialay, Rensselaer Polytechnic Institute, October 13, 2016
http://news.rpi.edu/content/2016/10/13/extraterrestrial-impact-preceded-ancient-global-warming-event
Ancient Meteorite Impact Rained Debris On US East Coast
By Calla Cofield, Space.com, October 13, 2016
http://www.space.com/34384-ancient-meteorite-impact-hit-us-east-coast.html
Yours,
Paul H.