It’s the season of catkins, and tourists visiting Beijing will likely be welcomed by snow-like flakes from blossoming poplar and willow trees. Though they might look pretty, catkins pose potential risks to traffic, people’s health and the environment. Experts have warned people that the fluffy white catkins could lead to asthma, allergies, and eye diseases. Mid-April will be the peak time for catkins in the air. Though Beijing authority has considered reducing catkins since the1990s, it wasn’t effective as poplar and willow trees play an important role in Beijing’s urban forest ecosystem. Experts have therefore called for a better city landscape planning.
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