the natural causes of climate change
- Created by: Charlotte Curness
- Created on: 12-04-14 12:05
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- The NATURAL causes of climate change
- changes in the EARTH'S ORBIT
- Precession
- Eccentricity
- Obliquity
- Changes in SOLAR OUTPUT
- 11 year sunspot activity where the dark spots indicate areas areas of more intense magnetic activity because it reduces convection = a brighter sun
- Volcanic emissions
- can lead to brief periods of cooling b/c ash and dust ejected high into the atmosphere which blankets the earth and reducing incoming insolation
- cosmic collisions
- large asteroids causing dramatic climate change. e.g. extinctionof the dinosaurs thought to be caused by meteor strike 65 million years ago.
- The ENSO cycle
- Untitled
- The North Atlantic Oscillation
- independent climatic phenomenon - may explain very cold winter of 2010 in europe
- changes in the EARTH'S ORBIT
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