Japan has ratified the Kyoto protocol on global warming that it signed at the United Nations climate conference in 1997, pledging to cut its output of greenhouse gases by 6%. The Japanese business community, however, is already questioning the feasibility of reaching the target, while environmentalists are sceptical about whether the government is serious about the Kyoto protocol. It has done relatively little to promote renewable energy resources as an alternative to burning the fossil fuel that contributes to global warming. According to Tetsunari Iida from Green Energy Network Japan, the government is focusing on expanding nuclear power to comply with the Kyoto protocol. What's more, under recently passed legislation for a national renewable energy mandate, electricity generated from the burning of industrial waste qualifies for green credits. Instead of buying credits from more expensive wind power, electricity suppliers can buy them from waste generation, not seen as a truly renewable energy by environmentalists.