It is always difficult to draw up such lists and, individually, we may well be surprised about (to us) obvious omissions and/or odd choices. Personally, I think it a pity that NUS as an organisation wasn't made a Fellow given the significance of its work to the sector over many years.
A more significant point, perhaps, may be the difference between the ethnic mix of the UK and the list of Fellows. Is it really the case that only people from certain ethic backgrounds are active in sustainability?
Thought not, ...