GENEVA — Canada has requested consultations with the United States on “unjustified tariffs” at the World Trade Organization, Canada’s ambassador to the WTO in Geneva said. “The U.S. decision leaves us with no choice but to respond to protect Canadian interests,” Ambassador Nadia Theodore said. …Bilateral consultations are the first stage of formal dispute settlement. If within 60 days no solution is found, then Canada could request adjudication by the Geneva-based organization’s Dispute Settlement Body. Canadian Prime Minister Justin Trudeau announced immediate 25% tariffs on C$30 billion worth of U.S. imports. If need be, Canada will target another C$125 billion worth in 21 days’ time, he said. …China formally launched a dispute at the WTO on February 5 over a 10% tariff imposed by Trump on Chinese goods, in moves that raised concern about a new trade war between the world’s two largest economies.