Nice, what we are missing is more random regulations and bureaucracy.
If you take a plane I think it's pretty obvious to anyone you are going to burn some carbon (a bathtub worth of fuel per passenger for a transatlantic flight if I remember). It's like eating Nutella directly off the bottle. The people who don't care won't read it, the ones who care already know.
Sounds nice and simple. But how do you actually calculate those numbers? What’s included? Are subcontractors or third parties counted? What if a single company uses some carbon asset in multiple product lines, is the cost divided up across the product lines based on their production ratio?
That these kinds of questions are so difficult to answer about whether something is truly green is a great reason to establish international standards and start actually figuring out how to fight carbon emissions across the board.