Throughout 2011 Adidas, Nike and Puma were targeted by Greenpeace for their use of a Chinese textile manufacturer that the environmental group said had a questionable pollution record. All three firms have committed to eradicating hazardous chemicals from their supply chain by 2020 as a result of the campaign.

Last week Nike released its 2010-2011 sustainability report, showing that energy and carbon increased by 19.7 and 16.6 percent from FY 2010 to FY 2011, while revenues rose by 10 percent. In the report, Nike  also committed itself to a 20 percent reduction in CO₂ emissions per unit of production, a 15 percent improvement in water use per unit and a 10 percent reduction in waste from manufacturing by FY 2015, measured against an FY 2011 baseline.

Correction: This article has been updated to reflect additional information supplied by Adidas after the piece was first published. We have also added more background on Adidas’s past reporting efforts.