Its feared that the mammoth iceberg could contribute to rising sea levels.
Essential life lesson for baby bear at Russian zoo does not come naturally
Nasa satellite images show large-scale decline in greenness of Africa's Congo rainforest.
Best photos of the day: 23 April 2014.
Harper government reclassifies humpback whale's status so controversial $7.9 billion Northern Gateway pipeline project can legally pass.
Scientists use new krypton dating technique to identify the age of ancient Antarctic ice.
Fossil discovery by Yale scientists reveals huge temperature plunge in South Pole regions
Tips for becoming more energy efficient on the 44th annual Earth Day event.
Best photos of the day: 22 April 2014.
Earthquake is the second off coast of Pacific island in weeks.
Force 7.2 quake is latest in series to have flared across Pacific basin, from LA to Chile.
7.2 magnitude quake centred north of Acapulco shakes Mexico, sending panicked people into the streets
Five climbers still missing after avalanche at 21,000 feet.
Ancient tundra preserved under Greenland ice sheet gives clues about its history.
Reservoir holding 38 million gallons of treated water contaminated by teenager needing the toilet.