Xinhua: The European Union (EU) on Friday vowed to shift international negotiations on a new global climate treaty into higher gear and to press for progress on a range of issues at the UN climate change conference in Poznan, Poland. The Poznan conference, which runs between Dec. 1 and 12, represents an important staging-post in the international negotiations which were launched in Bali, Indonesia, last December and are due to lead to the conclusion of a new global agreement at the end of …