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A device for power tools may also help regenerative braking.
General Electric’s Juan de Bedout demonstrates the company’s software system to improve the electric grid.
Allen Wright, senior staff associate at Columbia University, demonstrates a material that captures carbon dioxide from the air, which could be used to reduce atmospheric greenhouse gas concentrations.
Ronald Prinn, a professor of atmospheric science and the director of the center for global change science at MIT, says why climate scientists have started to change their minds about geoengineering.
Peter Kelemen, a professor of earth and environmental sciences at Columbia University, describes how to capture and store carbon dioxide by speeding up a reaction found naturally in certain rocks.
New materials harnessed hamster power, and researchers made carbon nanotubes practical.