Ключевые слова: background, campaign, care, climate change, concept, conservation, continent, cooperation, development, earth, earth day, eco, ecology, ecosystem, energy, environment, environmental, environmental conservation, environmentalist, finger, global, globe, green, group of people, growing, hand, help, hold, holding, human, human hand, improvement, life, map, men, nature, peace, person, pollution, protect, protection, recycling, save, security, sphere, symbol, water, woman, world, worldwide,