For one thing, we're going to need to cool the planet somehow, probably by reflecting some sunlight back into space.

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In some cases, sunlight shines through holes in the cavern ceiling, illuminating the beautifully clear, blue-tinted water giving it an otherworldly feel.

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Although he offers some points of light -- putting an aerosol layer of fine particles into the stratosphere to reflect back sunlight may, he says, could buy us some time by slowing down the rate of decline for a decade -- his projections are on the whole brutally pessimistic.

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Sunlight is not the disinfectant some would like it to be, but it is a nearly bulletproof way to stay out of trouble.

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It may be disgusting to some, but it turns out that shining a little sunlight on voting records is effective.

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The display looks great both indoors and out, though we did notice some odd black spotting while viewing the panel in direct sunlight -- adjusting the angle eradicates the issue.

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Some of the latest solar cells, for instance, can covert sunlight into electricity with an efficiency of more than 40%.

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For sunlight, however, it means concentrating the heat in some way.

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He said Sgt Shalit was suffering from some minor injuries including untreated shrapnel wounds and complications because of a lack of sunlight in the place where he was held.

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