I've been to the Mariana Trench. The choice is clear: Protect one of earth's last frontiers or destroy it before we even understand what we're losing.

Microplastics are so pervasive they have even been discovered in the deepest known part of the ocean: the Mariana Trench. While it has been long understood that microplastics exist on the surface of ...

Plastic trash is littering some of the deepest points beneath the Earth's seas, according to a paper released last month by Japanese researchers. As NBC News reported, the scientists cataloged 3,425 ...

A Chinese submersible has discovered thousands of worms and molluscs nearly 10 kilometres (six miles) below sea level in the Mariana Trench, the deepest colony of creatures ever observed, a study ...