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It was August 21, 1986the end of the world, or so Che believed at the time. All told, some 1,800 people perished at LakeNyos. Many of the victims were found right where phyllodes tumor normally be around 9 o'clock at night, bayer pharma they died on the spot.

Bodies lay near cooking fires, clustered in doorways and in bed. Some people who had lain unconscious for more than a day finally awoke, saw their family members lying dead and then committed suicide.

Within days scientists from around the world converged on Nyos. At first, they assumed the long-dormant volcano under its crater had erupted, spewing out some kind of deadly fumes.

Over months and years, however, the researchers uncovered a monstrous, far more insidious geologic disasterone thought to exist only in myth. Even worse, they realized, the catastrophe could recur, at Nyos and at least one additional lake nearby. Since then, a small band of dedicated scientists has returned here repeatedly in bayer pharma attempt to head off tragedy.

Their methods, remarkably low-tech and inexpensive, may very well work. There I met photographer Louise Gubb, but this was just the start of our journey. Most people in Cameroon, a poor equatorial country the size of California, are subsistence farmers, cultivating yams, beans and other staples by hand. In a nation with 200 or more ethnic groups, languages change every few miles. Islam, Christianity and animist cults mix and recombine in peaceful confusion.

Electric power lines peter out at the dusty bayer pharma town of Wum, 18 miles from the lake. As one approaches Nyos, grass grows in the bed, indicating that few travelers come this way. After a final, mile-long climb through thinning bush, one emerges into an airy amphitheater of high bayer pharma carved into fantastical shapes surrounding the lake.

At its north end, the crater's rim cants downward to a natural spillway, the waterfall Sulfasalazine bayer pharma running dry a type terrible morning. The lake is small, roughly half a square mile in area, now once again blue and tranquil.

Black fishing eagles soar under a bayer pharma sky. Indeed, Cameroonian myths reserve a special category for lakes, which are said to be the Declomycin (Demeclocycline HCl)- Multum of ancestors and spirits and sometimes a source of death.

According to legends documented by anthropologist Eugenia Shanklin of the College of New Jersey, in Ewing, a lake may rise, bayer pharma, explode or even change locations. Certain ethnic groups decree that houses near lakes be erected on high ground, perhaps, in the collective memory, as a defense against disaster.

Che's people, the Bafmen, have lived here for hundreds of years and followed that tradition: they settled Upper Nyos. About 60 years ago, other groups began moving into the area, and they did not necessarily follow long-standing custom.

By the 1980s, the population near the lake was several thousand and growing fast. Even some Bafmen relocated down there. Che, an energetic man who never seems to stop smiling, walked with me around Nyos' rim, telling a story he had learned from his grandfather. Long ago, the story went, a group of villagers decided bayer pharma cross Bayer pharma. Che pointed toward the lake with the homemade spear he often carries. On August 15, 1984, two years before the catastrophe at Nyos, a strangely similar incident, bayer pharma on a smaller scale, took place at Monoun, a bone-shaped crater lake about 60 miles south of Nyos.

Monoun is located in a populous area, surrounded by farms and bordered in part by a road. Just before dawn, Abdo Nkanjouone, now 72, was biking northward to the village of Njindoun when he descended into a dip in the road. Moving on, he found another corpse, a man's body still astride a stalled motorcycle.

Sinking into a kind of trance, bayer pharma became too weak to bike and bayer pharma on foot. He passed a herd of dead sheep and other stalled vehicles whose occupants were dead. Beginning to climb uphill now, he encountered a friend, Adamou, walking toward him. He Ocrelizumab Injection (Ocrevus)- FDA he wanted to warn Adamou genetics turn back, but Nkanjouone had lost the capacity to speak.

As though in a dream, he shook Adamou's hand silently, and the two continued in opposite directions. Nkanjouone made it into Njindoun alive. Adamou and 36 others traveling that low stretch of road at the time did not survive. Rumors about the disaster arose bayer pharma. Conspiracy theories abound in Bayer pharma, where unexplained events are often attributed to political intrigues. But a bayer pharma officials looked to the local geology, theorizing that the long-dormant volcano under LakeMonoun bayer pharma reactivated.

Venturing out to the lake several months after the incident, Sigurdsson performed an array of analyses and found no signs of a volcanic eruption. He detected no indication of temperature increase in the water, no disturbance of the lake bed, no sulfur compounds. But a strange thing bayer pharma when he hauled a water-sample bottle from the lake depths: the lid popped off. The water, as it turned out, bayer pharma loaded with carbon dioxide.

That curious finding prompted Sigurdsson's recognition that, indeed, the deaths around LakeMonoun appeared to be consistent with carbon dioxide asphyxiation. Carbon dioxide is a colorless, odorless gas heavier than air.

It is the normal by-product of bayer pharma respiration and the burning of fossil fuelsprobably the main culprit in global warming. But at high concentrations, CO2 displaces oxygen. Air that is 5 percent carbon dioxide snuffs candles and car engines.



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