Agence France-Presse: Queen Elizabeth II will urge the Commonwealth to keep taking the lead on global issues such as the environment in her Christmas message, according to extracts released Thursday. The 83-year-old sovereign will call on young people from across the Commonwealth to keep debating the important issues facing its members, after the group held important pre-Copenhagen talks at its biennial gathering in November. “It is important to keep discussing issues that concern us all — there …