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The '''average surface temperature''' on the earth is 15, maybe 16 degrees [[Celsius]] (60 degrees [[Fahrenheit]])," said Alan Robock, a [[meteorologist]] and climate researcher from [[Rutgers University]]. <ref>http://www.livescience.com/environment/060925_temperatures_high.html</ref>
The '''average surface temperature''' on the earth is 15, maybe 16 degrees [[Celsius]] (60 degrees [[Fahrenheit]])," said Alan Robock, a [[meteorologist]] and climate researcher from [[Rutgers University]]. <ref>http://www.livescience.com/environment/060925_temperatures_high.html</ref>
* The average temperature of the Earth has varied within a range of about 3°C during the past 3,000 years. It is currently increasing as the Earth recovers from a period that is known as the [[Little Ice Age]]. [http://www.oism.org/pproject/s33p36.htm]
* The average temperature of the Earth has varied within a range of about 3°C during the past 3,000 years. It is currently increasing as the Earth recovers from a period that is known as the [[Little Ice Age]].<ref>[http://www.oism.org/pproject/s33p36.htm Environmental Effects of Increased Atmospheric Carbon Dioxide]</ref>
==References==
==References==