Antarctica, the world’s last true wilderness, has been protected by an international treaty for the last 60 years. But the same isn’t true for most of the ocean surrounding it.Just 5% of the Southern Ocean is protected, leaving biodiversity hotspots exposed to threats from human activity.The Western Antarctic Peninsula, the northernmost part of the continent and one of its most biodiverse regions, is particularly vulnerable. It faces the cumulative threats of commercial krill fishing…