Ben doesn't need to do squat. Prove what? To who, you?
He is not required to prove anything. The results speak for themselves.
He is the CEO of a publicly-traded company. He would not make a claim about the company's technology if it wasn't true. The consequences of making false statements are simply too great.
"Ben needs to prove his claim and statement in videos by having a 3rd party life cycle analysis done to support his claim."