NSA - 453
Aggregate and the Environment
Organization: | NSA |
Status: | inactive |
scope:
Used for nearly every road and building in the world, aggregate - sand, gravel, and crushed stone - is a critical component of our society and economy. With over 16 billion tons of aggregate produced worldwide every year, they represent a major component of mining today. A new American Geological Institute publication, Aggregate and the Environment, examines this vital resource and the important ways in which it affects our lives through its use and environmental impacts.