While officials and activists convene in the Brazilian city of Belém for the COP30 UN climate talks, the nearby town of Soure on Marajó Island showcases an unusual form of sustainable transport - buffaloes. Brought from Asia in the 19th century, these animals are now central to island life, serving not only in agriculture but also as four-legged patrol vehicles for local cops. #COP30 #brazil #buffalo #belem #unitednations