The authorities in China capital city Beijing have issued a second red alert for pollution less than 2 weeks after the first ever such warning.

距首个红不到两周，北京再发重污染红。

Many small plastics are pushed by currents and hitchhike their way towards the ocean floor with other waste, from poop, to animal parts, to other pollutants.

许多小塑料被水流推动，与其他废物，从粪便到动物器官，再到其他污染物，一起搭便车到达海底。