This was his message:
50years from now cannot happen, it won't happen, without change. We face an existential threat. We should act not because it is the good or moral thing to do, but because we have to.
Action will come, values and markets will change, and things that are not possible now will become possible soon. The word 'enough' will be thoroughly re-valued. But we're humans so we will always wait until the last minute.
Remember, big corporates are not immoral, they are amoral. They care about value and the long term gowth. Right now value = money, but soon it will have to equal sustainability. This is the change that we need to work on right now.