The Dutch Have Solutions to Rising Seas. The World Is Watching.

The Dutch Have Solutions to Rising Seas. The World Is Watching.

ROTTERDAM, the Netherlands - The wind over the canal stirred up whitecaps and rattled cafe umbrellas. Rowers strained toward a finish line and spectators hugged the shore. Henk Ovink, hawkish, wiry, head shaved, watched from a V.I.P. deck, one eye on the boats, the other, as usual, on his phone.