***************************************************
Not by Fire but by Ice THE NEXT ICE AGE - NOW! |
Pacemaker of the Ice Ages |
![]() |
|||
Changes in global ice volume during the last 500,000 years, as determined from CLIMAP isotopic measurements. Chart is from John and Katherine Imbrie's book Ice Ages: Solving the Mystery, by permission of Enslow Publishers. Data from J. D. Hays et al., 1976, by permission J. D. Hays. |
|
It is also interesting that some egghead types went into Canada and extracted core samples from a lake bottom.
They analyzed the spores, sizes of the sediments, etc and were able to guesstimate how long it took for the last significant ice age to happen.
From start to finish. Temperate climate to total glaciation.
Ninety years.