This twilight band is believed to contain 70 per cent of all animal life on Earth. It also performs one of the planet's most important climate functions. Each night, billions of organisms migrate upward to feed near the surface, then return to depth by morning. In doing so, they transport carbon from the atmosphere into the deep ocean, where it can remain sequestered for centuries. Without this biological pump, global temperature targets would already have been exceeded.
2mo ago
