If possible, what would need to be different for earth's equator to freeze over and remain that way?
Here's what we know about the frozen ring:
- The temperature is below freezing for at least a few kilometers on land
- The equator has been frozen all year round for at least a few centuries
- Although the frozen ring may have always been there, it might also have appeared more recently due to geological, astrological or other sudden change in the earth's climate
- This earth may not look exactly like our own, but its climate in the other latitudes is ideally warm and habitable