Liverpool, Tottenham and Manchester City are the three most sustainable Premier League clubs, according to the latest study by United Nations-backed Sport Positive.
For the fourth consecutive season, Sport Positive has ranked all 20 top-flight clubs in England based on their environmental efforts.
Some clubs have come under fire for the use of domestic flights this season, with some 30-minute flights between fixtures criticised for their impact on the environment.
But they are also judged on what else they are doing to improve their climate credentials, with an annual table measuring everything from use of plastic to plant-based food.
The Reds and Spurs came joint-top with 24 points from a possible 27, with City close behind on 23.