When the last ice age was coming to a close about 19,000 years ago, the ice sheets that cover Antarctica began to shrink to their current sizes at about the same time as those in the Arctic, a new study finds.
When the last ice age was coming to a close about 19,000 years ago, the ice sheets that cover Antarctica began to shrink to their current sizes at about the same time as those in the Arctic, a new study finds.