For the moment, facilities that gasify coal to make it cleaner are not widely in operation, and in spite of the many permits being sought by utilities to build nuclear plants (if they wish to do so), no one has come forth with a proposal to actually build one.

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But we still want to make it a cleaner, greener, richer place while using the least amount of human labour possible to do so.

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First, not only is distributed generation cleaner and more efficient, but to make it work requires elaborate electronic-control systems that will result in the commercialisation of the electronic home and business.

ECONOMIST: Letters

With respect to something like coal, we made the largest investment in clean-coal technology to make sure that even as we're producing more coal, we're producing it cleaner and smarter.

WHITEHOUSE: The White House

Overall the new design looks cleaner, finger-friendlier, and the addition of Editor's Choice apps should make it easier than ever to get to the good stuff.

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But make no mistake about it--they are all aware that the long-term energy future for Texas lies in cleaner technologies, and they are planning their business strategies accordingly.

FORBES: Magazine Article

Rather than eliminate nitrogen oxide via a bulky chemical treatment system that even the EPA questioned initially, EGR would make the motor do all the work by piping exhaust gas back into the cylinders and burning it again a cleaner, cheaper, lower-maintenance solution, which would set Navistar ahead of the pack.

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