According to a wwf study , the five biggest manufacturers of disposable paper products in europe are procter and gamble , sca , kimberly clark , metsa tissue and georgia pacific , which control about 70 percent of the european market 這5家生產廠商控制著大約70的歐洲紙制品市場,而在它們生產的絕大部分產品中,可再生纖維的含量都非常低。