In most cases, the colors appeared two to three weeks after the stress events, Bollati says.

Bollat​​i 说， 在大多数情况下， 颜色会在压力事件发生后两到三周出现。

" The pace of climate change and the frequency and intensity of these stress events is such that I don't think this is enough."

“因为气候变化速度如此之快，这些压力事件的频率和强度又如此之大，所以我认为这不足以击退白化现象。”