Earth
Congestion charge can cut childhood asthma attacks by half
A congestion charge in Stockholm not only cut levels of air pollution, it halved the number of children admitted to hospital with asthma attacks
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A congestion charge in Stockholm not only cut levels of air pollution, it halved the number of children admitted to hospital with asthma attacks
The Chinese state hopes to use market forces to encourage energy-hungry firms to seek cleaner alternatives, but simply telling them what to do may be more effective