Word: sulfured
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...heavy dependence on coal. The best China can hope for, say experts, is to cut coal's portion of the energy mix from 75% to 60% by 2010. The imperative, then, is to find cleaner, more efficient ways to burn the plentiful fossil fuel, reducing emissions of carbon dioxide, sulfur compounds and the incompletely combusted particles that form soot...
...most costly -- and crucial -- steps in cleaning up coal boilers is curbing sulfur emissions. They combine with water in the atmosphere to create sulfuric acid and thus produce acid rain. Yet only one Chinese power plant boasts desulfurization equipment. China Huaneng Group, the market- oriented Chinese company that built the plant, was able to cover the cost of installing the antipollution devices only because the government agreed to raise electricity rates to users, according to Huaneng president Wang Chuanjian...
...Alaska's active Mount Spurr volcano that included a 3-D survey of the hellish terrain and an analysis of gases issuing from belching vents. Among the significant results: the first maps of the crater's surface, normally hidden by outcroppings and haze. Dante also discovered scant sulfur dioxide and hydrogen sulfide in the noxious air, implying that the volcano, which erupted in 1992, will probably stay quiet for a while...
...tail. Scientists studying the chemical composition of the spots on Jupiter where S-L 9 hit thought they might see evidence of water and oxygen, two of the expected products when an icy comet vaporizes. But except for one unconfirmed report,researchers have found only ammonia, hydrogen sulfide and sulfur...
...clue about how far the S-L 9 fragments penetrated Jupiter's atmosphere before exploding. Theorists think that a layer of water vapor lies some 60 miles below the visible cloud tops; above the vapor layer, about 30 miles down, are clouds believed to consist of ammonium hydrosulfide, a sulfur compound. Since no water seems to have been stirred up, the explosions probably took place in the presumed sulfide layer. If researchers confirm that the sulfur rose up from Jupiter, it will be "a major discovery," says University of Arizona astronomer Roger Yelle. "We've always believed that much...