Across the US west, rising temperatures are causing glaciers to retreat(退缩) to the point of(到了……的程度) vanishing. About 300 glaciers have disappeared since the 1960s, with almost all of the rest set to drastically shrink as the climate crisis continues to escalate, a new study has found.(一项新研究发现，自20世纪60年代以来，已有约300条冰川消失，而随着气候危机持续加剧，其余几乎所有冰川都将大幅萎缩。)
在美国西部，气温上升正导致冰川退缩到消失的边缘。一项新研究发现，自20世纪60年代以来，已有约300条冰川消失，而随着气候危机持续加剧，其余几乎所有冰川都将大幅萎缩。
At the midpoint of the last century more than 1,450 glaciers – large tongues of ice, snow and rock that move under their own weight and gravity – were threaded throughout the mountains of the American west, providing cool water for ecosystems and agriculture as they gradually melted.(上世纪中叶，超过1450条冰川——由冰、雪和岩石组成、在自身重量和重力作用下移动的巨大舌状体——遍布美国西部山区，在逐渐融化时为生态系统和农业提供凉爽的水源。)
上世纪中叶，超过1450条冰川——由冰、雪和岩石组成、在自身重量和重力作用下移动的巨大舌状体——遍布美国西部山区，在逐渐融化时为生态系统和农业提供凉爽的水源。
Some, in the Sierra Nevada of California, were formed a few thousand years ago while others, such as those in the Pacific north-west, are remnants from even further back in the last ice age, which ended about 11,700 years ago.(加利福尼亚内华达山脉的一些冰川形成于几千年前，而其他冰川，比如太平洋西北地区的冰川，则是更久远的末次冰期遗留下来的，该冰期约在11700年前结束。)
加利福尼亚内华达山脉的一些冰川形成于几千年前，而其他冰川，比如太平洋西北地区的冰川，则是更久远的末次冰期遗留下来的，该冰期约在11700年前结束。