Hike north on the Appalachian Trail and the scenery slowly transforms. Rugged, steep ridgelines in Tennessee and Virginia soften into the broad summits and smooth peaks of Pennsylvania and New Jersey.
Hundreds of millions of Americans are presently besieged by a massive arctic blast and winter storm. Luckily for them, it will only be temporary. That wasn't the case 20,000 years ago... Between ...
EarlyHumans on MSN
Earth’s longest ice age: The 300-million-year freeze
Over 2.4 billion years ago, Earth entered one of the most extreme climate events in its history — the Huronian Glaciation. For up to 300 million years, vast ice sheets covered the planet in what may ...
It's Blossom on MSN
Ice age left behind a 20,000-year-old 'secret' water source big enough to supply NYC for 800 years
Ice Age Left Behind A 20,000-Year-Old 'Secret' Water Source Big Enough to Supply NYC for 800 Years ...
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