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A yacare caiman (Caiman yacare) in the Pantanal wetlands of Bolivia. Ondrej Prosicky/Shutterstock

Reptiles: why one in five species face extinction

More than half of all crocodile species are a high priority for conservation according to the assessment.
EPA-EFE/Piyal Adhikary

How to survive a heatwave

Countries can adapt to intensifying heatwaves – but there’s a limit.
A stretch of the Champs-Élysées around the Arc de Triomphe in Paris is due to be pedestrianised by 2030. Shutterstock

12 best ways to get cars out of cities – ranked by new research

A new study finds congestion charging and creating car-free streets and separated bike lanes have been most effective at reducing car use in European cities.

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