Inter Press Service: At least half the planet must be protected if humanity is to survive the next century, declared conservationists at the conclusion of 9th World Wilderness Congress on Friday, Nov. 13. "That is what the science said, this is what many aboriginal people say," said Harvey Locke, the Wild Foundation’s vice president of conservation strategy. "It’s time to speak the simple truth: The whole thing unravels without protecting at least half of the planet," said Locke. A leading …