Reuters: US scientists have figured out how icebergs break off Antarctica and Greenland, a finding that may help predict rising sea levels as the climate warms. Writing in Friday’s edition of the journal Science, they said icebergs formed fast when parent ice sheets spread out quickly over the sea. “It won’t help the Titanic, but a newly derived, simple law may help scientists improve their climate models” and predict ice sheet break-up, they said in a statement. The Titanic sank in …