Questions tagged [winter]

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1answer
2k views

Why does the frost depth increase when the surface temperature warms up?

We've had an unusual winter this year, with a late cold snap that is causing people's underground water lines to freeze. Now that the weather has warmed up quite a bit, even more people's lines are ...
1
vote
1answer
66 views

How big of an event is needed to trigger a long winter?

Could a small meteor or natural nuclear explosion melt an ice cap on Earth to trigger a mini ice age without the event being observed by people? Can the Earth have an overlaying thermal cycle that ...
0
votes
0answers
35 views

How does nature produce circles of ice?

The YouTube video This is How Nature Produces Perfect Ice Discs shows an example of a circle of ice produced by nature. How is it possible for nature to produce one like the one in that video. ...
-1
votes
1answer
56 views

Why is the ice on a frozen lake sometimes cracked?

The YouTube video Skating Lake Baikal, the world's deepest lake - BBC News shows a very heavily cracked lake. It doesn't just appear to be a fault line. It appears to be an actual crack that started ...