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In the far northern reaches of Atlantic Canada, energy companies seek to harness untapped river sites with a hydroelectric project that could replace fossil fuel plants and export power into New England. Utility company Nalcor Energy aims to build two hydroelectric sites along the Lower Churchill River in Labrador, downstream from an existing 5,428-megawatt station -- one of the largest in the world. [More]

To press the "accelerator" on a Tesla Roadster 2.5 is to get an intimation of life as a race car driver. In perhaps the signature display of an electric car's appeal to gearheads, the Roadster instantly applies more than 300 amps of electric current to deliver 288 horsepower worth of acceleration--it's called instant torque, 273 pound-feet of it to be specific, and it's something that fossil fuel engines cannot provide due to the demands of combustion. That allows even an unprofessional driver to go from 0 to 100 kilometers per hour in seconds