Climate Change? The Modern CO2 Record

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Climate Change?The Modern CO2 Record
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• Global Warming - Man-made or natural?
  http//www.youtube.com/watch?vaUhP_XJyztE
• What we know for sure (Mauna Loa)
  http//www.youtube.com/watch?vPCQ5w8NjrQc
• Barrow Observatory http//www.youtube.com/watch?fe
  atureendscreenNR1vL3VD7UDCzE8
• Drilling Back to the Future Climate Clues from
  Ancient Ice on Greenland http//www.youtube.com/wa
  tch?featureendscreenvfjGxYDLEXP0NR1