I know what you're saying - the crisis is always just over the horizon, right?
But, I think there is some pretty recent evidence of coral kills. This article was just posted on CNN a week ago, and it sure sounds pretty alarming and immediate to me.
Caribbean coral suffers record die-off:
http://www.cnn.com/2006/TECH/science/03/31/coral.death.ap/index.html
I'll read it over later, but if I had a nickle for every "alarming" article I have read on the environment from the MSM over the last 40 years, I'd own my own damn coral reef by now. ;~))
This is more alarming to me.
Your article is unbalanced and biased. Although coral dies off at higher temperatures, those temperatures (about 90) have generally not been reached. Coral suffers much more from colder temperatures (70 or less) and natural coral deaths occur all the time. Under water chicken-little articles are easy since the public knows so little about it.