Hidden Canyons Beneath Antarctica: 300 Discovered, Could Accelerate Ice Melt

• Scientists reveal over 300 enormous submarine canyons carved into the seabed around Antarctica, nearly five times more than previously recorded.
• The discovery, made using improved seafloor mapping techniques, transforms understanding of Antarctica's underwater landscape from a flat plain to a rugged maze.
• Researchers from the University of Barcelona and University College Cork compiled extensive datasets from over 40 international research missions.
• These canyons act as powerful oceanic gateways, channeling warm ocean water towards ice shelves and accelerating melting, while also influencing global ocean circulation.
• Understanding these canyons is crucial for improving climate projections, as their role in intensifying ocean currents could significantly impact Antarctic ice melt and global sea-level rise.