As cities and states drop pandemic restrictions, Americans are filling stadiums and embarking on long-postponed vacations. But that welcome freedom comes at a cost: Traffic is rebounding to pre-COVID levels across the nation.

University of Maryland Baltimore County urban policy scholar John Rennie Short sees the coming months as a key inflection point. In his view, curbing gridlock will require a financial rescue for public transit and action to lock in people-centered street measures that cities tested out during the pandemic.

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Jennifer Weeks

Senior Environment + Energy Editor

It’s back: Rush-hour traffic in Los Angeles on June 15, 2021. Carolyn Cole / Los Angeles Times via Getty Images

As urban life resumes, can US cities avert gridlock?

John Rennie Short, University of Maryland, Baltimore County

The pandemic offered a tantalizing look at city life with fewer cars in the picture. But with traffic rebounding, there's limited time to lock in policies that make streets more people-friendly.

Science + Technology

  • Why gain-of-function research matters

    David Gillum, Arizona State University; Rebecca Moritz, Colorado State University

    The research community is taking a closer look at the lab-leak hypothesis for the origin of COVID-19, prompting discussion about the risks and benefits of engineering viruses.

  • Does outer space end – or go on forever?

    Jack Singal, University of Richmond

    Astronomers know a lot about what's in outer space – and think it's possible it never ends.

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