But when a deadly wall of ice cold water careered towards three vactioners, they nearly lost theirs. Sat in a small boat on a tour of Greenland's coastline, the group were casually admiring an innocuous-looking iceberg avalanche from a seemingly safe distance. In seconds that spectacle turned into a more »
Researchers found 10,000 square miles of seabed releasing huge plumes of methane gas. The methane fields are on a scale not seen before with emissions are going directly into the atmosphere causing global climate changes.