In the heart of Mexico City, a lone kayaker glides through ancient canals.⁣ Omar Menchaca, 63, is a former mining engineer turned environmental advocate.⁣ ⁣ For over three decades, he’s paddled through Xochimilco, collecting trash and raising awareness.⁣ ⁣ A UNESCO World Heritage site, Xochimilco is known for its Aztec-era canals and floating gardens.⁣ ⁣ But pollution and urban expansion now threaten this fragile ecosystem.⁣ Despite a city-wide plastic ban, bottles and bags still choke the canals.⁣ Menchaca says the wetlands are critical for recharging the aquifers that supply drinking water to millions.⁣ ⁣ #Mexico #environment #canals #Aztec #UNESCO ⁣