Efforts are underway to revive damaged Pacific coral reefs by actively gardening them (propagating and transplanting the coral).
This video was directed and produced by Jonathan Clay for the BBC's Natural History Unit as part of their "South Pacific" documentary. The resolution is high enough to make the video enjoyable at full-screen magnification.
Vimeo link.
Abundant coral is a good thing. It's like johnny apple seeding the ocean. We aren't introducing new or aggressive species. We are merely helping maintain the areas that we helped destroy the crap out of.