而且可能不会有太多警告，因为气候影响通常不会以线性方式逐渐演变，而是突然剧烈出现，一旦我们实现对某个临界点的突破。
And we may not get much warning, because climate effects generally do not evolve in a linear fashion, but rather emerge suddenly and powerfully, once certain tipping points have been reached.