REUTERS/Rebecca Naden/File PhotoMONTREAL, Dec 6 (Reuters) - Countries are gathering Tuesday for a key U.N. nature conference in Montreal, aiming to broker a new global agreement to protect what's left of Earth's wildlife and natural spaces. Global Land Outlook assessment. Like many other campaigners, Zabey called for "an ambitious, clear and enforceable international agreement" similar to the Paris Agreement on climate change. Unlike the U.N. climate talks, Montreal's summit will see few world leaders, which negotiators say could make it tougher to reach an ambitious agreement. Meanwhile, Montreal police have put up a 3-meter (10-foot) fence around the downtown summit venue, Palais des congrès, and are preparing for thousands of student protesters expected to swarm the Montreal's streets to demand a strong deal to protect nature.

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