Ice Ages
Yousuf Khan (ykhan@achilles.net)
Thu, 03 Oct 1996 03:45:16 GMT
It seems almost entirely like as if the Earth had no glaciers or cold
weather of any kind during the age of dinosaurs. Yet in the age of mammals,
we have glaciers and ice ages (humans came into the Americas because of
this feature).
So what happened? Did the Earth start orbiting farther from the sun? Did
the sun get colder? Why do I now freeze for half the year at a location at
a latitude that's only 45N (Ottawa, Canada), whereas only a few hundred
million years ago I could have been working on my tan even at the south or
north poles?
(Millions of Canadians want to know!) :-)
Yousuf Khan
--
Yousuf J. Khan
ykhan@achilles.net
Ottawa, Ont, Canada
Nation's capital
|