The perils of pollution testing

Washington Post:

Despite a move by authorities to slash the number of motorists in Beijing by more than a million during a pre-Olympics pollution test, the city's skies remained a hazy white Monday evening and pollution levels showed a slight increase over the four-day trial period, Beijing's Environmental Protection Bureau said.

A top Chinese environmental official attributed the increase to humid weather and said pollution levels had been higher just before the test began.

...

The word "irony" was invented for test such as this. It demonstrates how small the levers are that we attempt to use to change our environment.

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