Noise dosimetry may be necessary if the workplace noise levels vary throughout the day or if the workers are mobile, driving vehicles, or working in areas where it is either unsafe or impractical for ...

Discover how governments reduce national debt through tax hikes, spending cuts, bonds, interest rate management, and bailout ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

There are many causes of climate change. One example is cutting down trees. This is a problem that some people don’t know about. Carbon dioxide is released from the trunk when it breaks down or gets ...