Photo of the Day

No. 559

unintended consequences

A brand new baby sparrow, quite alive but unable to open its eyes or lift its head.

Sometimes they can be good.

Case in point: the 1970 Clean Air Act, the first comprehensive federal policy to combat air pollution.

The Act empowered the EPA to set air quality standards to protect human health and the environment.

President Nixon signs the Clean Air Act of 1970 at the White House, Dec. 31, 1970.

This law has been a stunning success.

Since 1990, the emission of key air pollutants has declined by 50%…