In a recent speech, UN secretary-general António Guterres called upon “every country to ban advertising from fossil fuel companies.” He urged the professional services and creative industries to “stop taking on new fossil fuel clients, from today, and set out plans to drop your existing ones.” In a recent speech, UN secretary-general António Guterres called upon “every country to ban advertising from fossil fuel companies.” He urged the professional services and creative industries to “stop taking on new fossil fuel clients, from today, and set out plans to drop your existing ones.” Environment Phys.org – latest science and technology news stories