That forms the snowline, which occurs at different heights around the planet depending on climate.

这使雪线得以形成。地球上各处的雪线高度有所不同是依据气候所致的。

They form above the snowline, or the lowest elevation where there’s ice and snow all year round.

它们形成在雪线之上，或者是全年都有冰雪的最低海拔。

Secondly, the mountain lies near the tropics, so the snowline is high, and the glaciers relatively small, barely big enough to widdle it down.

其次，这座山位于热带附近，所以雪线较高，且冰川相对较小，不太可能大到把它冲下来。