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MET 12 Global Warming: Lecture 10

MET 12 Global Warming: Lecture 10. Impacts Shaun Tanner San Jose State University. Outline: Extremes of 2010/2011. Recent Impacts of Global Warming. Earth’s hottest year on record - 2010. 2010 tied 2005 as the hottest year on record 19 nations set All-time heat records

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MET 12 Global Warming: Lecture 10

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  1. MET 12 Global Warming: Lecture 10 Impacts Shaun Tanner San Jose State University Outline: • Extremes of 2010/2011

  2. Recent Impacts of Global Warming

  3. Earth’s hottest year on record - 2010 • 2010 tied 2005 as the hottest year on record • 19 nations set All-time heat records • Covered 20% of Earth’s land surface area 3

  4. Earth’s hottest year on record - 2010 • Rotation over the Arctic reversed • Produced blizzards in the Earth • 2010-2011 snowiest Winter on record in Northeast U.S.

  5. Sea Ice, Lowest Volume On Record - 2010 • Sep. 19, 2010: 3rd lowest extent on record • 2010 lowest volume on record • 2011 tied for lowest extent on record

  6. Record Melting In Greenland • Greatest ice loss by melting since 1958 • Calving of 100 sq mile ice island • Record warm water along Green land West Coast

  7. Extreme Shift in El Nino • El Nino/La Nina contributed to massive flooding • Second most extreme shift (1973)

  8. Second Worst Coral Bleaching • Near-record Summer water in tropical oceans causes extreme bleaching • Worst since 1998, when 16% of World’s reef were killed off

  9. Wettest Year Over Land • 13% higher than second highest (1956) • Relatively dry conditions over oceans

  10. Amazon Drought • 2nd 100-year drought in 5 years • Healthy Amazon is very important for a healthy Earth

  11. Active 2010 Hurricane Season • Sea surface hottest on record in Atlantic • 3rd most active on record (2005) • Numerous records set for individual storms

  12. Rare Tropical Storm In South Atlantic • Only seven in record history • Anita was the 4th strongest of these

  13. Strongest Storm in Southwest History • Jan 20-21, 2010 set low pressure records in 10-15% of U.S. • Hurricane-force winds noted in Arizona

  14. Pakistan Flood • Most expensive natural disaster ever for Pakistan • Killed 1985 people and affected 20 million

  15. Russian Heat Wave of 2010 • Old record (99F) exceeded five times in two-weeks • Hit 101F on July 29, 2010 • Killed 55,000 (deadliest in history) and cost $15 billion • Cut wheat output by 40%

  16. Australian Flooding 2010-2011 • Most expensive natural disaster in history ($30 billion) • Wettest Spring in 111 years • Queensland rainiest year on record

  17. Colombia Flooding 2010 • Killed 528 people • Caused $1 billion in damage • Left 2.2 million homeless • Colombia’s deadliest flooding disaster

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