Just outside Butte, Montana lies a pit of greenish poison a mile and a half wide and over a third of a mile deep. It hasn’t always been so – it was once a thriving copper mine appropriately dubbed “The Richest Hill in the World.” Over a billion tons of copper ore, silver, gold, and other metals were extracted from the rock of southwestern Montana, making the mining town of Butte one of the richest communities in the country, as well as feeding America’s industrial might for nearly a hundred years. By the middle of the twentieth century, the Anaconda Mining Company was in charge of virtually all the mining operations. When running underground mines became too costly in the 1950’s, Anaconda switched to the drastic but effective methods of “mountaintop removal” and open pit mining. Huge amounts of copper were needed to satisfy the growing demand for radios, televisions, telephones, automobiles, computers, and all the other equipment of America’s post-war boom. As more and more rock was excavated, groundwater began to seep into the pit, and pumps had to be installed to keep it from slowly flooding.

By 1983, the hill was so exhausted that the Anaconda Mining Company was no longer able to extract minerals in profitable amounts. They packed up all the equipment that they could move, shut down the water pumps, and moved on to more lucrative scraps of Earth. Without the pumps, rain and groundwater gradually began to collect in the pit, leaching out the metals and minerals in the surrounding rock. The water became as acidic as lemon juice, creating a toxic brew of heavy metal poisons including arsenic, lead, and zinc. No fish live there, and no plants line the shores. There aren’t even any insects buzzing about. The Berkeley Pit had become one of the deadliest places on earth, too toxic even for microorganisms. Or so it was thought.

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Thomas H. HinesIn late 1863, the ongoing War Between the States was not going well for either the Union or the Confederacy. Two years of armed hostility had led to a stalemate, with mounting casualties on both sides. Protests were widespread, some of which even turned into riots. In order to quell opposition and further the war effort, President Lincoln had suspended certain civil liberties. Congress was bitterly divided along party lines, with a significant faction calling for a peaceful settlement. The partisanship had spread to the press and state governments, each side viciously attacking the other. The governor of Indiana went so far as to dissolve the state legislature and run the state as a military dictatorship. The upcoming Presidential election was looking to be a real corker, with the prospects for Lincoln’s re-election looking very dim.

Seeing an opportunity to turn the tide in their favor, Confederate leaders recruited sympathizers and infiltrators to engage upon a campaign of guerrilla warfare. Millions of dollars were set aside to finance the plan, with bonuses to be given to saboteurs in proportion to the damage they wrought. A good portion of those funds was specifically designated for cross-border operations from Canada, where a number of Confederate officers and prominent sympathizers had fled. At the very least, they hoped to cause an uprising of sufficient proportions that some Union troops would have to be redeployed away from the Confederate front. This was the start of what would become known as the Northwest Conspiracy.

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Back in the early 1980’s, the Wilhelmina Zoo in Stuttgart was looking into various types of seaweed for use in their aquarium displays. They settled on a species known as Caulerpa taxifolia, since its bright green, feathery fern-like fronds were quite pretty, and it was both hardy and fast-growing. In addition, it produces chemicals that make it taste awful to marine animals, so it wouldn’t get eaten.

By repeatedly subjecting specimens to harsh aquarium conditions and selecting the ones that survived the best, researchers developed Caulerpa taxifolia (Vahl) C. Agandh, a new-and-improved, genetically distinct strain which was particularly hardy and fast-growing. This variety was ideal for their purposes and it was shared with other museums and aquariums. For a time, all was well and good in the world of marine botany. In 1984, however, a square meter patch of this new variety of Caulerpa was found in the Mediterranean off the shore of Monaco, right outside the Oceanographic Museum.

Evidently a little piece of it was flushed down a drain. But while those organizations involved in dealing with the accidental release exercised their blame-pointing fingers, Caulerpa spread. It was, after all, particularly hardy and fast-growing. By the time anyone got around to doing anything about it, the infestation covered several acres and was beyond anyone’s control. By 2001, there were thousands of acres of this remarkably prolific plant clogging coastal waters around the Mediterranean.

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Herein lie the first Damn Interesting words of our most recent writer, Richard Solensky.

Aurora over Bear Lake, AlaskaIf you happen to be reasonably close to one of the Earth’s magnetic poles, the next time there’s a particularly intense aurora, go outside. Get as far as you can from sources of noise – traffic, barking dogs, TVs – and listen. Listen carefully.

If conditions are right, you may hear some unusual noises. Earwitnesses have said the sound is like radio static, a small animal rustling through dry grass and leaves, or the crinkling of a cellophane wrapper. Inuit folklore says it’s the sound of the spirits of the dead, either playing a game or trying to communicate with the living.

It’s the sound of the aurora itself. And the cause is currently unknown. Understanding the phenomenon is made more difficult by the fact that though there are many anecdotal reports, the sound has yet to be recorded.

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