An Around-the-World Eco-Voyage Makes a Pit Stop Near Wall Street

Here’s how it works: In the hulls, seawater is desalinized and purified, before an electrolyzer splits Hsub2O into hydrogen and oxygen. After that, the hydrogen gas is converted into electricity, via a custom-built Toyota fuel cell—a version of the technology inside the company’s hydrogen-powered sedan, which emits water vapor instead of exhaust.