Subjects: Travel restrictions; Vaccine passports; COVID-19 pandemic
Record details
Subjects: *Wilderness areas; *Ecological impact; *Protected areas
Subjects: *Greenhouse gas mitigation; *Pollution management; *Emission inventoriesTurkey
Subjects: *Electric vehicle batteries; *Hybrid electric vehicles; Particle swarm optimization
Subjects: *Industrialization; COVID-19 pandemic; Cruise industryAlaska
Subjects: *Sustainable development; *Environmental quality; *Alternative fuelsSustainable Development Goals (United Nations)
Subjects: *Compressed natural gas; *Natural gas; Travel time (Traffic engineering)Delhi (India)
Subjects: *National parks & reserves; *Public lands; Test validityGlacier National Park (Mont.)
Subjects: *Ecological impact; *Sustainability; Crises
Subjects: *Animal populations; *Wildlife monitoring; Drone aircraftTanzania