The practical work of the Quad is taken forward through six Leader-level Working Groups:ClimateCritical and Emerging TechnologyCyberHealth SecurityInfrastructureSpace A mangrove ecosystem near Tin Can Bay, Queensland, Australia. Mangroves capture and store large quantities of carbon, both in plants and in the sediment below, and provide essential breeding grounds and nurseries for many species. Book traversal links for Quad Leaders’ Track Working Groups ‹ The Quad in numbers Up Climate ›