Climate Impacts

August 2009

  • The total amount of water on Earth isn’t increasing, but the volume of liquid that fills the ocean is growing as ice and snow on land melt. The water is also getting warmer, which makes it expand. 

  • Minimum sea ice extent observed by satellites each September has decreased by 13 percent per decade since the late 1970s. All six of the smallest September minimum ice extents have occurred in the last six years. 

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