> so where would the air pollution have come from? -An ignorant (as I have never been within 1,000 miles of Kathmandu) guess is loads of wood-burning stoves; t

> so where would the air pollution have come from? -An ignorant (as I have never been within 1,000 miles of Kathmandu) guess is loads of wood-burning stoves; they soot like mad and can make Woody Allen[0] trust the air. [0] When asked about NYC air pollution, he allegedly quipped that he didn't trust air he couldn't see.