I'm not being flippant; I'm genuinely curious.

What's your ideal punishment? Death? Life imprisonment? Complete liquidation of the company? Fines or wage/income garnishment for executives and mangers and board members?

Shouldn't at least some government officials also be punished? I'm miffed that they're not routinely punished for similar (or worse) lapses.

And what exactly is it for which you wish they'd be punished? Potentially introducing an invasive species into the habitat of a protected species? Or failing to do more to prevent the actual introduction?

Companies that engage in environmentally-risky practices should be fined so heavily that they shouldn't attempt environmentally risky things unless they know they can do it properly. This creates a great advantage for well-run companies because it's basically a moat. Other companies that try it will fail dramatically because they'll get fined into oblivion.

This, to me, includes chemical factories. Whenever they have a gas leak, or an chemical spill, the fines should be utterly draconian. Personally I think a CEO of a chemical company should live no more than 1 mile away from one of her factories, but that's the environmental fascist in me.

Ineffective government officials should be fired with prejudice.

Or, more likely, how powerless they are to do anything.

Talk to a local Conservation Officer. You'll likely come away with newfound respect, but also pessimism. ;-)