A new study reveals that melting Antarctic sea ice could release massive amounts of trapped carbon dioxide, potentially speeding up global warming faster than predicted. Scientists warn that a slowdown in the ocean’s carbon-trapping system, similar to what ended the last Ice Age, may now be repeating itself. As the Southern Ocean warms, the planet’s natural climate balance could face a dangerous tipping point. A new study reveals that melting Antarctic sea ice could release massive amounts of trapped carbon dioxide, potentially speeding up global warming faster than predicted. Scientists warn that a slowdown in the ocean’s carbon-trapping system, similar to what ended the last Ice Age, may now be repeating itself. As the Southern Ocean warms, the planet’s natural climate balance could face a dangerous tipping point.