@Remi

quello che mi lascia perplesso è questo passaggio tratto da un articolo che ho postato in un altro 3d

These cold, dense southward flowing waters (collectively called Nordic Seas Overflow Waters) have been closely monitored with instrument arrays for more than a decade, but no sustained changes have yet been measured. Of the total 19,000 cubic km of extra fresh water that has diluted the northern Atlantic since the 1960s, only a small portion-about 4000 cubic km-remained in the Nordic Seas; and of that amount only 2500 cubic km accumulated in the critical layer feeding the Overflow waters. This is the reason, Curry explains, that the overflows have not yet slowed despite all the freshening. At the rate observed over the past 30 years, it would take about a century to accumulate enough freshwater (roughly 9000 cubic km according to this study) in the critical Nordic Seas layer, to significantly slow the ocean exchanges across the Greenland-Scotland Ridge; and nearly two centuries of continued dilution to stop them. The researchers conclude therefore that abrupt changes in ocean circulation do not appear imminent.


ciao