Building a global system to measure sustainable cities

A new series launched today in The Lancet Global Health provides the building blocks for a global standard to measure the sustainability of cities worldwide and to assess policy to make cities healthier and more sustainable.

Bovine blood keeps gold nanoparticles stable

(Phys.org) —A protein from cow blood has the remarkable ability to keep gold nanoparticles from clumping in a solution. The discovery could lead to improved biomedical applications and contribute to projects that use nanoparticles ...

Taking biofuel from forest to highway

The world is moving from a hydrocarbon economy to a carbohydrate economy, according to University of British Columbia biofuel expert Jack Saddler. He is presenting his work at the 2012 Annual Meeting of the American Association ...

Urban experimentation can help develop sustainable policies

Portland State University TREC researchers Kelly Clifton, Kristin Tufte and John MacArthur are among the co-authors of a May 2021 article published in Harvard Data Science Review. The paper, "Urban Sustainability Observatories: ...

Synthetic fuels could shrink carbon footprint

Synthetic fuels, made using carbon captured from the air, farm waste or biomass, could help the transport sector reduce its reliance on fossil fuels and meet "net-zero" greenhouse gas emission goals.

How to fund roads and ensure electric vehicles pay their share

Since electric vehicles use no gasoline, their drivers pay no gasoline tax. And as more people drive EVs, gas-tax revenue for road repairs is dwindling. So how can California and the rest of the country avoid road-funding ...

Cars bad for children and the planet

Children today spend more time in cars than previous generations. They also spend less time playing on the streets and in unstructured and unsupervised activity outdoors. The lack of opportunities for physical activity and ...

Shared autonomous vehicles have uncertain effects

The next revolution in transportation is expected to be shared autonomous vehicles, with personal cars yielding to driverless cars summoned on demand. For instance, Uber passengers in San Francisco, Pittsburgh and Phoenix ...

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