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Paulo Artaxo

Paulo Artaxo

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Paulo Artaxo is Professor of Environmental Physics and Head of the Department of Applied Physics at the University of São Paulo. He is an expert on the climatic effects of aerosols, particularly in Amazonia.

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  2. Internet policy Busakorn Pongparnit/Getty Images

    Big Tech’s Big Test

    By forcing much of the world to go online, the COVID-19 crisis has rapidly broadened the global technology debate beyond questions of surveillance and privacy. The digital policies that governments adopt today will increasingly shape how we work, learn, and entertain ourselves – and how we manage future crises.

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