it is certain that more bears will share this fate. 肯定会有越来越多的熊遭受这样的命运

270. Unable to feed, this bear will not survive.
     找不到食物,这只熊将无法活下来
271. If the global climate continues to warm,
     如果全球气候继续变暖
272. and the Arctic ice melts sooner each year,
     北极冰层融化的时间继续提前
273. it is certain that more bears will share this fate.
     肯定会有越来越多的熊遭受这样的命运
274. At the southern end of our planet,
     在我们行星的最南方
275. fiery ribbons are illuminating the winter skies.
     火焰一样的极光照亮了冬季的夜空
276. The aurora australis.
     南极光

来自《行星地球 第一季 第六集 Planet Earth S01E06 冰雪世界》第 273 行