Companies from Procter & Gamble to Walmart are lagging in efforts to mitigate environmental impact from the paper products they make and sell, according to a new report from an advocacy group. Environment America assessed the progress of six companies on their use of virgin fibers and indirect greenhouse-gas emissions. The group also looked at whether they obtained consent from Indigenous communities. …Walmart was given an F because it doesn’t disclose how many products are made with 100% recycled fiber or other non-virgin wood. …The other three companies given a failing grade for similar reasons were Costco, Amazon and privately-held Georgia-Pacific. …P&G, which received a D, released a bamboo toilet paper product this year, which the advocacy group said is a “step in the right direction.” In a response to the report, Georgia-Pacific said it follows guidelines on forest protection and sustainable practices.