Beijing’s hundreds of thousands of weeping willows and poplars have been a welcome source of shelter from the fierce summer sun for more than four decades – but they may also be an unexpected source of pollution, according to new research. Scientists warned that this urban greenery may be “choking” the Chinese capital’s 20 million residents by increasing the levels of ozone in the city’s air. Smog caused by the ozone released by car exhaust has been recognised as a public health problem since…
This is because they produce unusually high levels of isoprene, a volatile organic compound (VOC) that produces ground-level ozone when it reacts with the nitrogen oxide typically produced by vehicles or factories.
Oh so it’s the fault of cars still
It couldn’t be the unchecked co2 emissions and rampant pollution. Naw its the weeping willows.
Now watch them go full mao and tear out every willow tree like they killed all the sparrows with no thought of the repercussions…
