Edited by scientists at the National Oceanic and Atmospheric Administration, the 2012 State of the Climate report revealed that Arctic sea ice reached a record low, while sea levels and greenhouse gases from fossil fuel burning hit all-time highs last year.
2012 was also one of the top 10 warmest years on record globally, according to the report, which received input from hundreds of climate experts from more than 50 countries. The United States and Argentina specifically experienced their hottest years ever.
