The ice sheets of Greenland are melting, and it could be worse than we thought.
A new study suggests the ice sheets could be much more sensitive to human-driven climate change than previously estimated. Understanding the geological past of Greenland is vital for predicting sea-level rise, as a result of global warming. That's because its ice holds enough water to cause 23 feet (7 meters) of sea-level rise, which is a risk to every coastal region on Earth, the authors state.
