Click on the embedded file above
Due to the contentious nature of this topic I was forced to include over a dozen source links which are critical and reputable. The audio file loses this aspect. It's particularly important on this topic though so all the links, sources and references are on the transcribed version below (click link)
Written Article:
http://dwahts.blogspot.co.za/2018/03/scientific-consensus-is-that-consensus.html?m=1