The Japanese branch of an international environmental watchdog on Friday blasted an agreement struck the previous day in Sydney by Japan, the United States and Australia to transfer to the developing world advanced technologies to combat global warming. The technologies are cleaner, but are still based on fossil fuel use.

Without a focus on alternative energy sources, the Sydney agreement will only prolong the dependence of businesses in developing countries on fossil fuel, said Yurika Ayukawa, a senior climate policy official at WWF Japan.

The group argues that the key to curbing greenhouse gas emissions is to replace fossil fuels -- including oil, coal and natural gas -- with alternative energy sources, including solar and wind power.