Climate Change - Physical Factors

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  • Created by: evcoll3
  • Created on: 03-06-14 17:04
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  • Climate Change - Physical Factors
    • Volcanic Activity
      • Large amounts of volcanic dust can shield the earth from the suns radiation.
      • For example, the eruption of Mount Pinatubo in 1991 caused a dip in global temperatures in the early 1990s
    • Solar Variation
      • Sunspot Activity
        • Caused by intense magnetic energy.
        • They are visible as dark spots.
        • They can be as small as 16 kilometers and as large as 160,000 kilometers.
        • They are usually in the range of 2,700 - 4,200 degrees Celsius.
    • Milankovitch Cycles
      • Changes in the Earth's movements and orientation can alter the amount of solar radiation reaching the Earth.
    • Ocean Currents
      • An El Niño event in 1982/83 claimed nearly 2,000 lives and global losses of an estimated $13 billion.
      • Ocean currents move large amounts of heat across the planet
      • About half of the CO2 added to the atmosphere during the past century by human activity has been absorbed by the ocean.
  • Milankovitch Cycles
    • Changes in the Earth's movements and orientation can alter the amount of solar radiation reaching the Earth.
  • They are usually in the range of 2,700 - 4,200 degrees Celsius.
  • Ocean Currents
    • An El Niño event in 1982/83 claimed nearly 2,000 lives and global losses of an estimated $13 billion.
    • Ocean currents move large amounts of heat across the planet
    • About half of the CO2 added to the atmosphere during the past century by human activity has been absorbed by the ocean.

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