Exports of advanced technology for coal-fired power plants will help fight global warming, the nation's environment minister has said, even though the world's richest nations has decided to restrict subsidies on such exports.

Many developing countries will continue to look to coal-fired power plants to meet their energy requirements and the key issue is to use efficient technology to curb greenhouse gas emissions, Tamayo Marukawa said in an interview Tuesday.

Her comments came a week after members of the Organization of Economic Cooperation and Development struck a deal to restrict subsidies used to export technology for coal-fired power plants.