Ice ages don't just appear out of nowhere. They are part of a natural ... If history is a guide, it tells us that another ice age could be part of our distant future. Several factors play key ...

David Popa, 29, creates the giant portraits by swimming out to sea in the freezing ... ice and take the picture, it's go time," he said. The pieces, which are human faces, are ephemeral art ...

Sculptors have finely chiseled ice into elaborate structures resembling landmark castles and temples in northeast China. AP People are making the best of the freezing weather in northeast China ...