High radiation levels of more than 250,000 becquerels per kilogram of radioactive cesium have been detected in male flowers of Japanese cedar trees in the restricted zone around the damaged Fukushima ...

Researchers pinpointed the gene that deprives Japanese cedar trees of their ability to produce pollen, carving out the future where no one may suffer the agony brought about by hay fever. Scientist ...

Every year, pollen counts in Japan are getting worse. In fact, pollen levels in Tokyo were literally off the charts just a few weeks ago. As a result, for four months out of the year, an estimated 15 ...

The government pledged to slash the pollen count in half over the next 30 years to make life more tolerable for the millions of people in Japan who suffer from hay fever each spring. It aims to do ...

This week's column is about air pollution, principally emissions from diesel engines. But first, the forest and cedar trees. A cleared stand of Kitayama cedar at Kitayama, northern Kyoto, shows how ...

The government on Tuesday unveiled a draft proposal for lessening the effects of Japan’s hay fever season, which include reducing cedar forests by 20% over 10 years with the goal of lowering the ...