Link.
"Razib Khan has an academic background in the biological sciences, and has worked for many years in software. He is an Unz Foundation Junior Fellow. He lives in the western United States."
Razib's writings can be found on his blog, Gene Expression.
I figured that might be why... My comment was not really very useful, and I realized that, but his Green-ness did make me think "He's in the Matrix" all through the video (as you too have noticed).
He could offset this in the future by hanging a reddish-orange cloth behind him... Or, maybe Yellowish would be best to prevent him from over-correcting the color. I used to do a lot of video work and probably should have mentioned this to begin with above (that I really knew why he was green), and have had to do some really strange make-up or lighting to correct for a camera or ambient light color that was causing bizarre skin-tones (the very worst was having to make a guy nearly blue to offset an orange cast)