Sloganeering for Cnidarians

Over at Maribo, Simon reports that scientists at the last ICRS were highly concerned about the impact of anthropogenic carbon dioxide on coral reefs. However, he reports that despite a sense of urgency among the participants at the conference, their attempts at outreach on this matter may not be direct or clear enough. He closes his post with:

Doesn't the community need a far, far stronger message? Any suggestions?

So, in bumper sticker format, here’s my artistically challenged suggestion. Anyone else is welcome to one-up me.