Walkers母公司百事公司（PepsiCo)因为其购买商乐购（Tesco）建议，开始解决过度包装问题（Over packaging)。如今，PepsiCo开始对自己的供应商施加类似的影响。去年，PepsiCo声称会到2030年为止，会减少40%的温室气体排放。
The 235bn$ consumer good company PepsiCo is looking to exert an eco-friendly influence on its own supplier after the advice that Tesco was giving. It seeks to meet targets set out in the 2015 Paris agreement on climate change - claims to cut greenhouse gas emissions throughout its value chain(including its suppliers and customers) by at least 40 percent by 2030, compare with a 2015 baseline.
百事将改变运输方式以及饮料所用冷却器。 以及需要说服生产百万吨商品的农民改变生产方式。为实现这个目标，每年供应商和客户需要减少2260万吨的二氧化碳的排放。
The action plan cascading down the supply chain is the only way to leverage change. They will make changes to its transport and to the coolers used for its drinks and they will need to persuade farmers who make massive production of commodities annually to change their practice. PepsiCo has to cut emissions amounting to 22.6mn tonnes of carbon dioxide equivalent per year to achieve its goal.
Walkers 薯片的农民正在试运行一项使用马铃薯皮加工成低碳肥料的计划，预计可减少70%化肥排放。 至于贸易商的GHG足迹（greenhouse gas footprint)的可追溯性，譬如棕榈油（常被指责为滥发商品的商品），PepsiCo每年购买大约25万吨。
PepsiCo does not own potato farms but the potato farmers are piloting schemes in the UK to process potato peelings into low-carbon fertiliser on its supplier farms which have the potential to reduce fertiliser emissions by about 70 percent. PepsiCo buys about 450K tonnes of palm oil - a commodity that has been blamed for deforestation, the traceability is harder to achieve.
PepsiCo和Ingredion以及Soil & water outcomes fund支付改变farming method的农民报酬，同时也要解决塑料污染以及肥胖问题(plastic pollution and obesity)。