BBC Sport website reported in February that it has worked with the United Nations-backed Sport Positive Summit since 2019 to research the sustainability of all 20 Premier League clubs, with the rankings updated each year.
Teams were asked to provide evidence of efforts in 11 categories. Two points are available for each category as well as two bonus points, making a maximum of 24 points.
Tottenham and Liverpool came joint-top of the 2021 Green League. Tottenham Hotspur players travel to matches on coaches powered by biofuel, reducing travel emissions by more than 80%. Leeds and Newcastle were bottom of the list.
Teams from the Central Region were placed 10th (Leicester City), 12th (Aston Villa) and 18th (Wolverhampton Wanderers).
The English Premier League clubs ought to be applauded for making their performances known. It will be interesting to discover what other sports are doing in this respect.
The latest list of team rankings and the criteria used to judge them can be found at www.bbc.co.uk/sport/football/60196764