I find some dry ice and hilarity ensues.

Veron JE, Hoegh-Guldberg O, Lenton TM, Lough JM, Obura DO, Pearce-Kelly P, Sheppard CR, Spalding M, Stafford-Smith MG, & Rogers AD (2009). The coral reef crisis: the critical importance of Marine pollution bulletin, 58 (10), 1428-36 PMID: 19782832

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