Why Hydrogen Is the Hottest Thing in Green Energy

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Why Hydrogen Is the Hottest Thing in Green Energy

For one thing, it burns — hot and clean. Replacing the fossil fuels now used in furnaces that reach 1,500 degrees Celsius (2,732 degrees Fahrenheit) with hydrogen gas could make a big dent in the 20% of global carbon dioxide emissions that now come from industry. In steelmaking, hydrogen could replace the coal that’s now used not only for heat but to purify iron ore. The byproduct is water vapor rather than CO2. And while batteries currently dominate the field of electric vehicles, some companies are betting that hydrogen-powered fuel cells will be a better choice than batteries for heavy vehicles, such as trucks, ships and potentially even airplanes.

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