By Jim Brace-Thompson
Immense ice sheets have long covered Greenland and Antarctica, tying up water and giving us enticing vacation spots like the low-lying Florida...
By Jim Brace-Thompson
Towering forests on the frozen, ice-bound continent of Antarctica? It may be hard to imagine, but that’s what newly analyzed seafloor sediments...
By Jim Brace-Thompson
Many theories have been offered as to what initiates and control cycles of glaciation on Earth. Some have been literally out-of-this-world. For...