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North America's first people may have arrived by sea ice highway as early as 24,000 years ago (phys.org)

One of the hottest debates in archaeology is how and when humans first arrived in North America. Archaeologists have traditionally argued that people walked through an ice-free corridor that briefly opened between ice sheets an estimated 13,000 years ago....

NYC MTA sets Manhattan congestion price at $15 for most vehicles, just one MTA vote left before the first congestion pricing in North America (www.planetizen.com)

New York City’s congestion pricing program is moving forward with a $15 fee on passenger vehicles, reports Stephen Nessen in Gothamist, after the MTA board voted to approve it. The program now enters a 60-day public comment period before a final vote....

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