by Pablo COZZAGLIO / Alberto PEÑA Agence France-Presse LA HIGUERA, Chile (AFP) – The Humboldt archipelago off the northern Pacific coast of Chile is a “natural treasure” and refuge for unique species of fauna, including a particular type of penguin and an otter on the brink of extinction. But its fragile ecosystem is under threat, say environmentalists, from a $2.5 billion mining project on the nearby mainland that has stirred the debate in Chile between […]