Enormous quantities of toxic mercury are now accumulating in the Arctic tundra as a result of industrial activity and emissions in the temperate parts of the globe, according to a new study...

The Arctic broke multiple climate records and saw its highest temperatures ever recorded this year, according to the National Oceanic and Atmospheric Administration's (NOAA) annual Arctic Report Card released Tuesday. The report shows...

The Arctic is experiencing extraordinarily hot sea surface and air temperatures, which are stopping ice forming and could lead to record lows of sea ice at the north pole next year, according...

Arctic sea ice appears to have reached a record low wintertime maximum extent for the second year in a row, according to scientists at the NASA-supported National Snow and Ice Data Center...