Shingles are made of asphalt, derived from the lowest grade of oil. It's so chea... | Hacker News

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		kijin on April 26, 2012 \| parent \| context \| favorite \| on: Peak plastic Shingles are made of asphalt, derived from the lowest grade of oil. It's so cheap we paint it all over our roads, too.

dkastner on April 26, 2012 [–]

Not only is it made from the lowest-grade oil, but this low grade oil constitutes the majority of all the oil (and near-oil substances) that's left, e.g. tar sands, oil shale.

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