What's the Name of That Book??? discussion

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Warriors of the Rainbow
SOLVED: Adult Fiction
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SOLVED. 2012ish preview copy SciFi/Dystopian quasirealistic fiction.Dystopian Great Britain, Whales can control the weather, a mysterious summons across the atlantic. Advanced biolgical artificial intelligences with multi-lobed brains [s]
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Greatwinter series by Sean McMullen - Andy's suggestion:
https://www.goodreads.com/series/5097...
https://www.goodreads.com/series/5098...
https://www.goodreads.com/series/5097...
https://www.goodreads.com/series/5098...
Next part I can remember, a mysterious radio signal is sent that causes the authorities to put protagonist and "girlfriend" onto a boat, which is drawn across the ocean by an unseen force. They end up landing near a tribal village, and it turns out the evolving brain evolved specifically so that it could learn to communicate with various aquatic species (mainly whales) who have a surprising control over weather, radio signals and many other advanced things. It was the whales who summoned the pair from Britain and moved their boat across the ocean.
The book contains some sexual content. "Girlfriend" has sex with boyfriend after voyage. Also, early in book, boy describes memory of girlfriend cooking while naked, with tampon string hanging out. Girlfriend was of African descent.