As if we don't have enough to worry about with global warming. Some scientists are on the lookout for the beginning of a new ice age. Click on the web pages below and you'll learn about the cycles that may indicate we are about to face another ice age, where Northern Europe, Northern North America, and Northern Asia may be about to be covered with ice.

Read about Milankovich cycles

http://deschutes.gso.uri.edu/~rutherfo/milankovitch.html

http://gemini.oscs.montana.edu/~geol445/hyperglac/time1/milankov.htm

See some wild speculation from me: Fly-By's

Again, who knows? Who can tell? Are we doomed to just wait and see?

Thrusters, if they are possible, practical, and politically acceptable, would give us a tool to fight back against any possibility of an ice age.

We could use the thrusters to change the tilt, spin rate, orientation, or even orbit to counter a possible attack of the ice.