What has been noted in studies is that diets lower in calories, and higher in plants seem to be beneficial.

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Meanwhile, data collected over eight years by Penn State University for the Pennsylvania Department of Environmental Protection show mercury levels 47 percent higher in areas closer to power plants.

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Historically, humans have been consuming cauliflower mosaic virus and its 35S promoter at much higher levels than those in uninfected transgenic plants.

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Shutting these plants would mean higher rates for customers in both states, and much of the power replaced would almost certainly come from fossil fuel sources.

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Strong empirical evidence shows that higher CO2 means plants grow faster: farmers elevate CO2 levels in their greenhouses to get high crops.

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Moreover, these companies all have new or nearly new factories in America, which deliver higher quality and productivity than the American makers' older plants and are not burdened with a legacy of high pensions and health-care costs.

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The companies and the unions have said a new regulation targeting mercury and other toxic pollutants, due to be proposed this week, could lead to higher electric bills, billions of dollars in new costs and the closing of plants that employ thousands of workers.

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As an integrated steel manufacturer, U.S. Steel (26.8 million tons annual capacity) is well positioned for higher demand, with a rich product mix, favorable raw materials costs and profitable plants in Europe.

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