Dr Asma Zafirah doesn’t need satellite images to know when Kalimantan is burning. She sees it in the watery eyes and laboured breaths of the patients at her clinic in Sarawak, and the children who are kept home from school to protect them from the toxic air. Southeast Asia’s transboundary haze crisis was meant to have been brought under control six years ago. But Borneo is once again belching out dangerous emissions, as fires in the peatlands and forests of Kalimantan – Indonesia’s section of...