For businesses, certifications can increase credibility, and thus demand, while labels encourage consumers to pay premiums. Society as a whole profits from certifications because of growing competition between companies on social or environmental grounds, better insights into production and value chains, higher import standards, and, ultimately, changes in consumer norms leading to growing pressure on supply chains. These advantages call for the widespread use of labels in tourism, including in particular carbon labels, which can inform consumers on low-energy/carbon choices. For instance, the EU energy label is relevant for purchases of white appliances and other products, such as light bulbs, refrigerators, freezers, washing machines, tumble dryers, dishwashers, ovens, air conditioners, water heaters, and TVs.