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Number of vehicles in the United States: Did we reach the peak in 2006?

Green Car Congress

In a recent article , I examined changes in distance driven in the United States during the period from 1984 through 2017. Distance driven per person reached a maximum in 2004. The focus is on vehicles per person, as opposed to the absolute number (which depends, in part, on the continuously increasing size of the U.S.

2006 277
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Why EVs Aren't a Climate Change Panacea

Cars That Think

There are two major reasons for this: first, EVs are not going to reach the numbers required by 2050 to hit their needed contribution to net zero goals , and even if they did, a host of other personal, social and economic activities must be modified to reach the total net zero mark. For example, researchers at University of Oxford in the U.K.

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Chips to Compute With Encrypted Data Are Coming

Cars That Think

This article is part of our special report Top Tech 2024. I think this is the coolest technology of the last 20 years,” says Todd Austin , a hardware security expert at the University of Michigan, whose startup Agita Labs does a different form of secure computing in the Amazon and Microsoft clouds. “It billion fine for Meta.

Standards 138
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Craig Partridge Is Still Working to Improve Internet Traffic

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It was 1983, and BBN needed an additional person who could write TCP/IP code for the BSD [Berkeley Software Distribution] Unix operating system,” he says. Later that year he joined Colorado State University in Fort Collins, as chair of its department of computer science. It opened my eyes. “So

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Taking the Measure of the Earthquake That Destroyed Tokyo

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But it paled in comparison to the destruction about to be unleashed. An abridged version of this article appears in the September 2023 print issue as “The Earthquake That Was Too Big to Measure.” The Great Kanto Earthquake was so large that the seismometer taking this reading stopped recording.

Japan 124
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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

Green Car Congress

Within the overall trends there are differences between cities with more or less public transit; while personal income also impacts heating and industrial fuel use. They calculated emissions for ten cities (or metropolitan regions), which vary in population from 432,000 to 9,519,000; comparisons are in per capita terms. Charles Kolb.

Emissions 199
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Forecasting the Ice Loss of Greenland’s Glaciers With Viscoelastic Modeling

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This sponsored article is brought to you by COMSOL. The ongoing discharge of ice into the ocean is a “fundamental process in the ice sheet mass-balance,” according to a 2021 article in Communications Earth & Environment by Humbert and her colleagues. However, Earth’s great ice sheets are always moving and evolving. Humbert, et al.