Eating less meat or giving up flying are palpable ways people can help mitigate climate change. But how much does personal action matter? And how should societies meet the challenge of lowering greenhouse gas emissions?

Yael Parag of the Reichman University in Tel Aviv weighs the merits of individual carbon budgets. Bruce Friedrich of the Good Food Institute highlights the impact of eating beef. And Jon Fasman, The Economist’s US digital editor, tries a lab-grown meat substitute to assess its flavour and potential.

Hosted by Vijay Vaitheeswaran, The Economist’s global energy and climate innovation editor, with environment editor Catherine Brahic, and Oliver Morton, our briefings editor.

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