Throw the people who were caught into jail.
Offer them a significantly reduced sentence if the GreenPeace leaders to planned and ordered this identfy themselves and submit themselves for Pervian justice.
Let the Progressive rank and file see and learn that their own leadership will let them go under the bus once like the useful idiots/cannon fodder their leadership thinks they are.
sEND THEM TO THE SPACE STATION FOR A LONG SPACE WALK.