50MPG? Banned in the US

How would you like to have a car which gets better than 50 miles per gallon? Such cars exist, and are actually rather common in Europe. Why aren’t they sold here? They are essentially illegal, thanks to some very tight regulation. They are diesels, and as such run in Europe on a fuel which by law includes 15% minimum biofuel, a renewable resource.

But efficient engines like this run at higher temperatures and pressures, meaning they essentially burn a little nitrogen and thus produce more Nitrous Oxide, or NOx.

This is at the heart of the infamous Volkswagen “cheating scandal”, which was indeed a terrible moment. But now that Chevrolet’s small diesels may be guilty of the same thing, it’s worth talking about.

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Flak Over Frack

There is probably no more contentious issue at the crossroads of politics and technology than hydraulic fracturing, or fracking. The process, where oil and gas drillers chew up rock deep in the earth, is responsible for the major oil boom that produced so much oil it collapsed into the current bust – with very low oil prices. It also creates a lot of environmental damage and, as a relatively new technology, is remarkably unregulated.

New rules were introduced for fracking on federal land on Friday by the Bureau of Land Management (BLM). Eagerly awaiting them were the drilling industry and environmentalists, both of which had a big stake in the regulations. If you are a long time follower of these procedures, or simply a cynic, it might come as no surprise that both sides are unhappy.

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