The tip of the iceberg 冰山一角

Iceberg interpreted as exposed by just a fraction of the things, but the iceberg now because of the greenhouse effect, melting away, really want to rest in a corner of the iceberg.
冰山一角解釋為所暴露出来的只是事物的一小部分，然而現在的冰山卻因為溫室效應，漸漸融化消逝，真正要剩下一角的冰山了。