The title of my presentation at ASB6 “The Origin, Distribution & Detection of Life in the Universe”, 2 – 4 September 2015, Centre for Planetary Sciences at UCL/Birkbeck
A summary of my view is given on the Web page section entitled The origin of atmospheric oxygen.
There are ways in which to test the hypothesis described there.
It is also a pleasure to record that I shall soon receive support for research on this topic from the Leverhulme Trust in the form of an Emeritus Research Fellowship.