Sure as I know anything, I know this: In a year or maybe ten, perhaps even on this very ground, they'll swing back to the belief that they can make people better; and I don't hold to that.
- Captain Malcolm Reynolds, Serenity, 2005
Making things better after they have become worse is an innate desire of man, a remnant of discharging the white man's burden or Freudian guilt mechanism? Whatever that may be, but for sure this never has worked, neither in science fiction nor in real life. Lets just try not to spoil and if we do spoil, kindly leave the unspoiling to nature.
References:
Antarctic ocean test fails to get desired results
`Seeding the oceans with iron might not help to suck up carbon ...