I think it is that Google says its carbon footprint is "zero", just like folks who maybe recycle 100% of everything they buy from the store, but in reality much

I think it is that Google says its carbon footprint is "zero", just like folks who maybe recycle 100% of everything they buy from the store, but in reality much of that isn't actually recyclable even if it has the logo on it. Thus this statement should likely be taken with a grain of salt.