Protecting the environment is a science-based decision and should not be negotiable (see Nature 624, 225; 2023). Yet, two days after Brazilian President Luiz Lula da Silva’s speech at the COP28 climate summit in Dubai, United Arab Emirates, on 1 December 2023, his government announced the paving of highway BR-319. This connects Manaus, in the heart of the Amazon rainforest, to Porto Velho, in the ‘deforestation arc’ on its southern frontiers.
Competing Interests
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The authors declare no competing interests.