N.B.A. superstar LeBron James said Tuesday morning that he would announce the name of the team that he is signing with on Thursday at a special session of the United Nations General Assembly to be convened especially for that purpose. This decision affects everyone on the planet, James said. I want to let all the nations on Earth know at the same time. An emergency meeting of the U.N. Security Council on Tuesday was deadlocked on the issue, with seven members wanting James to remain in Miami, seven others hoping for a return to Cleveland, and Lithuania abstaining. The Miami Heat president, Pat Riley, and the Cleveland Cavaliers owner, Dan Gilbert, both confirmed that they would be in the audience at the United Nations to hear James announce his decision. Im not going to lie: I wish hed tell me in advance, Riley said. But I guess Ill have to wait to hear along with Russia, China, Ecuador, and everybody else. Thats the way LeBron wants it. To help him with his decision, the N.B.A. star has assembled an esteemed circle of advisers, including Archbishop Desmond Tutu, Supreme Court Justice Ruth Bader Ginsburg, and the scientist Stephen Hawking, all of whom are expected to be in attendance for the United Nations announcement. The U.N. General Secretary, Ban Ki-moon, acknowledged on Tuesday that the world body had many other issues on its plate, including conflicts in the Middle East and Ukraine, but added, Its really hard to focus on anything until we know where LeBron is going. 