Damage to Coral Reefs by Excessively Warm Water

This page is the CodyCross answer for the clue below from Science Lab, Group 309, Puzzle 5 (Filter Funnel).

Question is: Damage to Coral Reefs by Excessively Warm Water

and the answer is: BLEACHING

Word Meaning:

BLEACHING — present participle and gerund of bleach

Definitions from Wiktionary.