Mysterious 'cold blob' discovered in Atlantic. Does it mean trouble?

Mysterious 'cold blob' discovered in Atlantic. Does it mean trouble? USA Today A mysterious ‘cold blob’ in the ocean has puzzled scientists. A new study says it’s an ominous sign CNN Amoc collapse could change Europe’s climate 10x faster than expected. We aren’t ready The Guardian Oceans are warming — but one spot is getting colder. It could be a clue to the future San Francisco Chronicle The North Atlantic’s ‘cold blob’ may signal a major current’s decline Science News