"We don't know who struck first, us or them, but we know that it was us that scorched the sky." [1]

(note: I am absolutely for trying to save the great barrier reef, and I'm not qualified to judge the feasibility or consequences of this approach, so no moral or other judgement intended. If it can be made to work without breaking Earth production, I hope it gets merged)

[1] https://www.youtube.com/watch?v=JVEHSXL9UPM