Greenhouse gases are depriving our oceans of oxygen | UN Environment

Greenhouse gases are depriving our oceans of oxygen | UN Environment
Marine biologists will tell you that fish species such as tuna and swordfish, known as the deep-water divers of the ocean for hunting at depths of 200 meters, are today repeatedly coming to surface view.
The reason for the behavioral quirk is that warming sea temperatures have zapped oxygen out of waters even far out to sea, making it difficult for the predators to breathe—let alone hunt—in deep water. As the planet’s atmosphere traps more heat, so the oceans get warmer......