BRUSSELS — A top German official called for Google to be broken up. A French minister pronounced the company a threat to his country’s sovereignty. A European publishing executive likened it to a Wagnerian dragon.

LONDON — When Ireland recently made its first offering of new debt since leaving its bailout program, Irish Prime Minister Enda Kenny was already focused on where the money would come from next.

The fight over cars and carbon dioxide moves Tuesday from the Supreme Court to a federal courtroom in Burlington, Vt., in a case that automakers say could reshape vehicles sold on the East and West coasts.