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The Star Trek mission for rare earths

Mark Mardell | 17:51 UK time, Wednesday, 15 December 2010

Star Trek fans may recall those pesky lithium crystals used to power the Star Ship Enterprise were always having some problem or another. But I bet you the Federation wouldn't let the Romulans corner the market in them.

But back on earth a shortage of lithium is a problem for the US. America is beginning to wake up to the fact that it relies on China for a whole host of rare minerals that are vital for modern technology.

The supplies of delightfully named substances, collectively called rare earths, such as , , , and (which means "hard to get at") are critically low.

China, which controls at least 95% of what are know in the trade as "rare earths", alarmed some earlier this year by cutting back on supplies. but the fact is that it .

The US Department of Energy has urging the reopening of mines in America, and perhaps some government funding or loans to make this happen.

Rare earths are used in computers and mobile phones as well as smart weapons, but the Department of Energy's particular worry is that clean energy technologies from lighting to batteries to wind turbines could be at risk.

The Secretary of Energy, writes in the foreword: "The availability of a number of these materials is at risk due to their location, vulnerability to supply disruptions and lack of suitable substitutes."

The report says "production within the United States is vitally important", and .

You don't have to be a historical genius to note how access to vital raw materials, whether gold, oil or coal, can be a vital factor in the rise and fall of empires and indeed the wars they wage. Given that the clue is even in their name, what is really puzzling is how on earth American politicians and policy makers managed to miss the importance of the rarity of rare earths up until now.

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