Why Was Interior Alaska Green During the Last Ice Age?

Why was interior Alaska green during the last ice age? By Ned Rozell [fusion_dropcap]D[/fusion_dropcap]uring our planet's most recent cold period, a slab of ice smothered Manhattan. Canada looked like Antarctica but with no protruding mountains. When the last glacial maximum peaked about 20,000 years ago, most of the continent - from the Arctic Ocean to [...]