Quote:
Originally Posted by Greenish  Huh? 
Do you mean... Erm... It's hard to explain! 
Arctic & Antarctica used to be tropical, and now they're covered in ice? 
Is that what you mean, because I'm confused!
Bethany |
I don't know a huge amount about it myself, just what I've been learning on my OU course.
I think basically the earth's climate and global temperature goes in cycles, huge cycles which last millions and millions of years.
Part of these cycles are ice ages which include glacial periods (when we would be covered in ice) and interglacial periods (when we're not)
At the moment we're several thousands of years into an interglacial period, so yes, theoretically your Dad's right saying we're going to have another ice age but the timescales are huge!
That's about as far as I can explain on here really, although it is a fascinating subject!