Word: fossils
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...Having a fossil in this region of time, very near the divergence point, is really exciting," says anthropologist C. Owen Lovejoy of Ohio's Kent State University. "Going all the way back to Darwin, people have speculated how, when and why humans stood up on two legs. For paleontologists, this find is a dream come true...
...detailed anatomy of these fragmentary fossils, especially the teeth, that convinced Haile-Selassie that he had discovered a new human ancestor. Although apelike, the lower canines and upper premolars, in particular, display certain traits found only in the teeth of later hominids--the term scientists use to describe ourselves and our non-ape ancestors. They also differ in shape from the teeth of all known fossil and modern apes. Even the way in which the teeth had been worn down was telling. Explains Haile-Selassie's thesis adviser, Berkeley paleontologist Tim White: "Apes all sharpen their upper canines as they...
...that kadabba walked upright at all is hugely significant. Paleontologists have suspected for nearly 200 years that bipedalism was probably the key evolutionary transition that split the human line off from the apes, and fossil discoveries as far back as Java Man in the 1890s supported that notion. The astonishingly complete skeleton of Lucy, with its clearly apelike skull but upright posture, cemented the idea a quarter-century...
Mahler of FuelCell Energy says such economies of scale would make fuel cells even more competitive with fossil fuels. He estimates that with its current production at 50 megawatts a year, his company's cells can deliver power at 7[cents] or 8[cents] a kw-h. But when FuelCell increases production by 2004 to 400 megawatts a year, as it plans, the attendant savings could drop the price to 5[cents] or 6[cents] per kw-h, all else being equal...
Some argue that U.S. tax policy discriminates against renewable-energy companies by taxing them at virtually the same rate as fossil-fueled competitors who impose big costs on society through pollution and greenhouse gases. Almost everywhere else in the world, fossil fuels bear cumbersome taxes. Japan has a "green tax" and the U.K. a "Climate Change Levy," as well as other taxes on fossil fuels...