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I'm biased, but I feel like if they really cared about the environment they would encourage licensing this instead of keeping it to themselves.

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Patenting often precludes licensing. Lowering fuel costs is not synonymous with environmental concern.

> Patenting often precludes licensing.

Don't you mean "precedes"? You can't license something you don't have the rights to.

Good catch, my grammar is off.

Licensing is precluded by a lack of patenting.

Who said they cared about the environment? They wanted lower fuel costs to save themselves money, which makes perfect sense.

The article mentioned carbon dioxide output: "the company overhauled the design to address rising fuel costs and cut carbon dioxide emissions"

Though I imagine the fuel costs are a primary consideration and the environmental aspect is mostly there to push press opportunities.

Cutting carbon emissions is a separate goal because the EU seems to have a directive that seeks to reduce carbon emissions among the ships that service the EU market (somehow). I don't seem to be able to search the web effectively to find discussions of this directive. It came to my attention while reading about some other maritime silliness. There seems to be mention of something here: http://ec.europa.eu/clima/policies/transport/shipping/index_...

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