Climate Change - Milankovitch Theory- Precession Cycle

Climate change due to variations in the earth's orbit - Milankovitch Theory

2) Precession cycle -

  • The earth is wobbling about it's axis of rotation like a spinning top
  • To make one complete cycle takes about 23,000 years
  • in 11,000 years, the seasons will switch times during year and will be more severe...., why?