The Health Benefits of Wind and Solar Exceed the Cost of All Subsidies ( 432

New submitter TheCoroner writes: A paper in Nature Energy suggests that the benefits we receive from moving to renewables like wind and solar that reduce air pollution exceed the cost of the subsidies required to make them competitive with traditional fossil fuels. Ars Technica reports: "Berkeley environmental engineer Dev Millstein and his colleagues estimate that between 3,000 and 12,700 premature deaths have been averted because of air quality benefits over the last decade or so, creating a total economic benefit between $30 billion and $113 billion. The benefits from wind work out to be more than 7 cents per kilowatt-hour, which is more than unsubsidized wind energy generally costs.

This study ambitiously tries to estimate the benefits from emissions that were avoided because of the increase in wind and solar energy from 2007 through 2015, and to do so for the whole of the U.S. Millstein and colleagues looked at carbon emissions, as well as sulphur dioxides, nitrogen oxides, and particulate matter, all of which contribute to poor air quality. There are other factors that also need to be considered. A rise in renewables isn't the only thing that has been changing in the energy sector: fuel costs and regulation have also played a role. How much of the benefit can be attributed to wind and solar power, and how much to other changes? The researchers used models that track the benefits attributable to renewable power as a proportion of the total reduction in emissions.


Dilution of Whisky -- the Molecular Perspective ( 84

From a new published paper in Scientific Report by Bjorn C. G. Karlsson and Ran Friedman: Despite the growing knowledge of the nature of water-alcohol mixtures on a molecular level, much less is known on the interaction of water, alcohol and small solutes. In particular, the nature of the interaction between the solvent and taste-carrying molecules, such as guaiacol, is not known. To address this gap, we used MD simulations to study the distribution of guaiacol in water-alcohol mixtures of different concentrations. Our simulations revealed that guaiacol is present at the air-liquid interface at ethanol concentrations that correspond to the alcohol content of bottled or diluted whiskies. Because the drink is consumed at the interface first, our findings help to understand why adding water to whisky helps to enhance its taste. A molecular understanding of the nature of taste compounds in water-alcohol mixtures allows for optimizing the taste of alcoholic spirits. [...] Overall, there is a fine balance between diluting the whisky to taste and diluting the whisky to waste.

Google Lunar X-Prize Extends Deadline Through March 2018 ( 30

schwit1 writes: The Google Lunar X-Prize has announced that it has extended its contest deadline from the end of 2017 to the end of March 2018 for the finalists to complete their lunar rover mission and win the grand prize of $30 million. They also announced several additional consolation prizes that all of the remaining five contestants can win should they achieve lunar orbit ($1.75 million) or successfully achieve a soft landing ($3 million), even if they are not the first to do it. At least one team, Moon Express, will be helped enormously by the extra three months. This gives Rocket Lab just a little extra time to test its rocket before launching Moon Express's rover to the Moon.

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