Boromir Stark was right. Too bad he meets the same fate in both dimensions. If he had lived to warn Gandalf that winter is coming, the Fellowship may have taken a different route across the Misty Mountains.
Instead, the snow forced them into the mines of Moria and brought them face to face with the Balrog. Gandalf had no choice but to do the Jesus thing.
Should have listened to Stark and came back in Summer.