As the European cold front is about to enter its third week, the Danube River and Black Sea have frozen over in many countries, with La Repubblica reporting that 420 have died across Europe. ... The Black Sea waters around the Ukrainian port city of Odessa were completely frozen for the first time since 1977, and Ukrainian ports will remain closed until at least Feb. 15. Russia's Novorossiysk port, usually an ice-free port all year round, was closed for two days last week because of ice. In the Romanian Black Sea port of Constanța, the waters were frozen for up...