July 29 (Bloomberg) -- Japanese Prime Minister Yasuo Fukuda vowed to make half of vehicles sold in his country run on hybrid or other clean technologies by 2020 and to build nine nuclear reactors in as many years to fight global warming.

Fukuda's Cabinet today approved his plan to cut emissions of gases blamed for global warming by 60 to 80 percent by 2050. As part of the goal, which was first announced in June, the government will introduce a trial carbon emissions trading program for companies in October, an official who briefed reporters said.

Fukuda has made the fight against climate change his main policy objective since taking office in September. The prime minister pushed world leaders to follow Japan's emissions targets during the July 7-9 Group of Eight summit on the northern island of Hokkaido.

The ``next generation'' vehicles Japan hopes to promote include those that run on electricity, fuel cells, clean diesel, and compressed natural gas, the official, who briefed reporters on the condition he not be named, said.

Japan intends to boost its use of solar energy 10-fold by 2020 and 40-fold by 2030, he said. Japan also hopes to promote carbon capture technology, which traps emissions underground to prevent them from entering the atmosphere.

The official didn't provide details of how the government would achieve the goals outlined in today's plan, or what support it would provide to industry.

To contact the reporter on this story: Keiichi Yamamura in Tokyo at kyamamura@bloomberg.net; Toko Sekiguchi in Tokyo at Tsekiguchi3@bloomberg.net

Last Updated: July 29, 2008 00:05 EDT