they leave out deap ocean warming, which is an extitential threat to our civilizational level. should our ocean warm past the delicatly balanced point of waters greatest density, it will leap its banks and take out all of the worlds shipping infrastructure. unfortunatly good data on the worlds oceans is not good enough to draw conclusions about what is happening. at 1.3 billion km³ it will take a concerted effort to monitor what is going on, other than the simple fact, that it is warming and expanding.