But the police investigation discovered the wrecked vehicle was in a high-ratio setting.

BBC: Police in speed claim over Gordon Lennon fatal crash

There is a fine line between forcing banks to have enough capital to protect themselves and their depositors against all realistic losses, and setting that capital ratio so high that - in the short term at least - the banks starve the economy of vital credit as they build up their capital.

BBC: Osborne and the safe size for British banks

But setting that aside, a 30-to-1 benefit ratio to keep our air clean sounds like a mighty wise investment to me.

FORBES: A Call to Arms on Climate Change