Ask HN: Could ships that convert CO2 + water to natural gas save the planet?

Re:Ask HN: Could ships that convert CO2 + water to natural g... by mooism2 on Monday October 17, 2011 @09:57AM (#3120469)

My first thought is that this is probably more expensive than building a solar array on land and connecting it to an electricity grid. Although potentially a ship could spend the northern summer in the northern hemisphere and then go south for the northern winter, gaining access to more sunlight.

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Re:Ask HN: Could ships that convert CO2 + water to natural g... by gerad on Monday October 17, 2011 @12:48PM (#3121254)

Yeah, you're probably right about it being more expensive, and much more difficult logistically, to do on a ship.

The motivation for it was threefold: 1. Less environmental impact (no covering up a large swath of land). 2. No cost to buy the land. 3. Plenty of access to water.

I hadn't even considered the possibility of moving the ships depending on sunlight conditions. That's really brilliant.

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