In July 2008, the United Kingdom Advertising Standards Authority (ASA) criticised a press campaign by the airline, over a misleading environmental claim that its aircraft released 22% fewer emissions than rival airlines. The figures used were not based on emissions produced by an EasyJet aircraft or emissions produced by the airline overall as the advertisement implied, and ASA declared that the airline had broken advertising rules. The judgement that followed reprimanded the airline in April 2007 after it made comments that its aircraft created 30% less pollution per passenger than some of its rivals.