90% of the planet´s living space and 91% of the biodiversity is under water.
We do not have much activity in deep waters – as yet! We have found oil in deep waters, there are metals and minerals being investigated, as well as creatures and plants, gas hydrates are being looked into.
Russia is claiming that its continental shelf reaches the north pole via the Lomonosov Ridge.
The International Seabed Authority will hear the case in due course.
The greatest depth is about 10000 meters.