MARC GUNTHER – The EPA’s Clean Power Plan might be the only hope the US has to make a real dent in the climate change battle. So why aren’t more companies onboard? Many environmental groups consider the Obama administration’s plan to regulate carbon-spewing coal plants, which aims to cut carbon pollution by 30%, as one of our last chances to win the fight against climate change. But the vast majority of their top corporate partners – companies like Coca-Cola, PepsiCo, FedEx, UPS, Target and Walmart, which have worked with environmental NGOs for years – aren’t backing them up, according to a Guardian survey.