The most compelling argument for sea based migration into the Americas are the wind and current patterns.
![[Image: oceancurrents.jpg]](https://images.weserv.nl/?url=marinebio.org%2Fi%2Fcurrents%2Foceancurrents.jpg)
The shortest distance is from the Ivory Coast to South America. At the Last Glacial Maximum the distance would have even been shorter due to lower sea levels. In the Pacific the currents conveniently run right down both the coasts of North and South America before converging and heading back west.
I used to have a chart which showed the winds generally conforming to the currents but can't find it right now.
![[Image: oceancurrents.jpg]](https://images.weserv.nl/?url=marinebio.org%2Fi%2Fcurrents%2Foceancurrents.jpg)
The shortest distance is from the Ivory Coast to South America. At the Last Glacial Maximum the distance would have even been shorter due to lower sea levels. In the Pacific the currents conveniently run right down both the coasts of North and South America before converging and heading back west.
I used to have a chart which showed the winds generally conforming to the currents but can't find it right now.