I'm liking the VW one - 'We're sorry we got caught'.
I imagine that's true of pretty much every corporation when it hits the fan.

Corporations won't take the environment seriously until the financial penalties for not doing so put a massive crimp in the bottom line and that requires international cooperation. Nobody wants to disadvantage their own industry so you end up with a long line of Climate talks that end in deadlock or that make grand proclamations but don't actually result in much change.