Global Warming - The World Meteorological Organisation Annual Summary

The Telegraph: Record low in Arctic sea ice caused by global warming, says UN

Last year was the 27th consecutive year with an above average global temperature and the ninth warmest year on record. The years between 2001 and 2012 were among the top 13 warmest on record.

Arctic sea ice reached a record low of 3.41 million square kilometres in summer 2012.