TOKYO -- More than 250 Japanese corporations have pledged to attain net-zero greenhouse gas emissions or better in the future, according to a Nikkei survey, with more than half coming this year in conjunction with a major U.N. climate summit.
More than 250 companies have committed to becoming carbon neutral or negative

Sunflowers surround a turbine at a wind farm in Awara, a Japanese city on the Sea of Japan coast. (Photo by Eiki Saot)
TOKYO -- More than 250 Japanese corporations have pledged to attain net-zero greenhouse gas emissions or better in the future, according to a Nikkei survey, with more than half coming this year in conjunction with a major U.N. climate summit.