Scientists battle to save world's coral reefs
![Scientists battle to save world's coral reefs](http://bloximages.chicago2.vip.townnews.com/tdn.com/content/tncms/assets/v3/editorial/d/fd/dfd03b2c-06c2-5d8a-845c-cd9a2cabd658/5766ec68969ef.image.jpg?resize=300%2C225)
HONOLULU (AP) — After the most powerful El Nino on record heated the world's oceans to never-before-seen levels, huge swaths of once vibrant coral reefs that were teeming with life are now stark white ghost towns disintegrating into the sea.