The amount of sea ice around the world is at the second lowest level ever, of any measured summertime period. Average ice extent fell below that for June 2007, which had the lowest minimum ice extent at the end of summer. However, ice extent this year was greater than in June 2010. The sea ice has entered a critical period of the melt season: weather over the next few weeks will determine whether the Arctic sea ice cover will again approach record lows. At the current pace, sea ice will likely near the critical value levels suffered during 2007.
Global composite temp.: +0.31 C (about 0.56 degrees Fahrenheit) above 30-year average for June.
Northern Hemisphere: +0.38 C (about 0.68 degrees Fahrenheit) above 30-year average for June.
Southern Hemisphere: +0.25 C (about 0.45 degrees Fahrenheit) above 30-year average for June.
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| July Sea Ice Extent |
Global composite temp.: +0.31 C (about 0.56 degrees Fahrenheit) above 30-year average for June.
Northern Hemisphere: +0.38 C (about 0.68 degrees Fahrenheit) above 30-year average for June.
Southern Hemisphere: +0.25 C (about 0.45 degrees Fahrenheit) above 30-year average for June.
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