'Planetary emergency' due to Arctic melt, experts warn
Experts warned Wednesday of a "planetary emergency" due to the unforeseen global consequences of Arctic ice melt, including methane gas released from permafrost regions currently under ice.
In climate landmark, Arctic ice melts to record low
The sea ice in the Arctic Ocean has melted to its smallest point ever in a milestone that may show that worst-case forecasts on climate change are coming true.