Where does the UK most need more public EV chargers?

Government investment in neighbourhood EV chargers cannot replace investment at motorway services.

Hannah Budnitz, Research Associate, Transport Studies Unit and Environmental Change Institute, University of Oxford • conversation
July 1, 2025 ~8 min

America’s clean air rules boost health and the economy − here’s what EPA’s new deregulation plans ignore

Clean air has become one of America’s best investments, returning $10 for every $1 spent on regulations, by one estimate.

Richard E. Peltier, Professor of Environmental Health Sciences, UMass Amherst • conversation
March 12, 2025 ~9 min


Clean air rules boost US health and the economy − charts show what EPA’s new deregulation plans ignore

Clean air has become one of America’s best investments, returning $10 for every $1 spent on regulations, by one estimate.

Richard E. Peltier, Professor of Environmental Health Sciences, UMass Amherst • conversation
March 12, 2025 ~9 min

America’s clean air rules have boosted health and the economy − here’s what EPA’s deregulation spree ignores

Clean air has become one of America’s best investments, returning $10 for every $1 spent on regulations, by one estimate.

Richard E. Peltier, Professor of Environmental Health Sciences, UMass Amherst • conversation
March 12, 2025 ~9 min

Car brake dust can be more harmful than diesel exhaust – new study

Almost half of all copper in the air comes from brake wear.

Matt Loxham, Professorial Fellow, Faculty of Medicine, University of Southampton • conversation
Feb. 14, 2025 ~7 min

Millions of animals die on roads – does this make driving morally wrong?

For most animals, unlike humans, cars offer threats rather than benefits.

Diego Exposito, PhD researcher in Politics, University of Sheffield • conversation
Feb. 5, 2025 ~6 min

Why do we use gasoline for small vehicles and diesel fuel for big vehicles?

Both gasoline and diesel fuel are refined from crude oil, but they are good for different things and can’t be used interchangeably.

Michael Leamy, Woodruff Endowed Professor of Mechanical Engineering, Georgia Institute of Technology • conversation
Oct. 28, 2024 ~6 min

Los Angeles is in a 4-year sprint to deliver a car-free 2028 Olympics

Can a city that’s synonymous with freeways and gridlock deliver a car-free Olympic Games? Los Angeles has picked up the torch.

Jay L. Zagorsky, Associate Professor of Markets, Public Policy and Law, Boston University • conversation
Aug. 21, 2024 ~8 min


A packed Baltimore trolley illustrates the ups and downs of US public transit

When US cities offered low-cost, high-quality public transit during World War II, buses and trains were full. Some cities are trying to revive that formula, after decades of disinvestment.

Nicholas Dagen Bloom, Professor of Urban Policy and Planning, Hunter College • conversation
Aug. 9, 2024 ~4 min

Traffic engineers build roads that invite crashes because they rely on outdated research and faulty data

A traffic engineer argues that, contrary to his profession’s view, ‘human error’ is not the main cause of deaths in car crashes in the US.

Wesley Marshall, Professor of Civil Engineering, University of Colorado Denver • conversation
June 21, 2024 ~8 min

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