the freezing of much of the water on the planet would stop or severely decrease the currents in the sea and the associated temperature changes;
(the freezing of much of the water on the planet; would stop; ) (the freezing of much of the water on the planet; severely decrease; the currents; L:in the sea)
the freezing of much of the water on the planet the freezing of much of the water on the planet
would stop severely decrease
the currents L:in the sea