But now they believe another factor plays a major role: thermal balance.

但现在他们认为另一个因素起着重要作用：热平衡。

If thermal balance is an important trigger for surge then climate change will have an impact.

如果热平衡是激增的重要触发因素，那么气候变化将产生影响。

Researchers have observed that glaciers more easily maintain thermal balance in Cold, dry climates-- where they can shed heat to the frigid air.

研究人员观察到，冰川在寒冷、干燥的气候中更容易保持热平衡——在那里它们可以向寒冷的空气散发热量。