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Gravity Batteries, Green Hydrogen, and a Thorium Reactor for China

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This article, by researchers at PARC and the University of Washington, is one possible answer. The basic idea is to add particles of sea salt to the atmosphere to brighten clouds and cool the planet. Molten salt nuclear reactors fueled by thorium were first investigated at Oak Ridge National Laboratory in the 1950s.

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Start-up Proposes Ionic Liquid - Amine Systems for Carbon Capture and Natural Gas Processing

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ION Engineering , a start-up founded by scientists at the University of Colorado, is integrating room-temperature ionic liquid (RTIL) solutions into amine-based carbon capture and emissions control technology. Article ASAP doi: 10.1021/ie8016237 Bara, et al.

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Researchers Propose Solar-Driven Biomass Gasification Pathway for Synthetic Fuel Production

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Researchers at the Norwegian University of Science and Technology (NTNU) are proposing a new process for producing synfuel from biomass using concentrating solar energy as its main energy source. High temperature heat for biomass gasification is obtained from a molten-salt system in a solar concentrating tower.

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Sadoway and MIT team demonstrate calcium-metal-based liquid metal battery

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MIT professor Donald Sadoway and his team have demonstrated a long-cycle-life calcium-metal-based liquid-metal rechargeable battery for grid-scale energy storage, overcoming the problems that have precluded the use of the element: its high melting temperature, high reactivity and unfavorably high solubility in molten salts.