Workers farm at night to avoid intense heat – but it can lead to other negative effects

From farm workers in Brazil to India and the US midwest, shifting to a schedule where it's dark out could mean dangerous conditions and less food

This story was produced by Grist and co-published with the Guardian.

For years, Josana Pinto da Costa ventured out every morning on to the waterways lining Obidos, Brazil, in a small fishing boat. Gliding over the murky, churning currents of the Amazon River basin, her flat nets brought in writhing hauls.