Japan is gripped by mass allergies. A 1950s project is to blame 16.8%
BBC - By Nithin Coca - 5/19/2026, 10:00 AM
Post Hoc (False Cause) 17.9% - Optimism Bias 13.9% - Appeal to Authority 12.7%
A decision made 70 years ago to reforest vast swathes of Japan with just two kinds of tree has come back to haunt the country. In February, videos showing what looked like waves of smoke blowing off an evergreen forest went viral in Japan. It wasn't smoke – it was pollen, and the videos were a warning to tens of millions of residents of... more