Caterpillar today announced that it offset the 1,182 metric tons of carbon dioxide (CO2) emissions created by the 9,500 meters squared Caterpillar Zeppelin stand at bauma. Carbon offsets represent ...

Travelling the path to sustainability starts with the first jump. by Bill Langer During the past year Lucy, Rosie, and I (pictured above) have used this column to run, ...

By Bill Langer The development of a Canadian sand and gravel deposit demonstrates how these questions apply to aggregates.  When Rosie and I compete in canine agility, it is ...

Agility and adaptability are the keys to succeeding in sustainability initiatives. by Bill Langer, USGS   While waiting for Rosie’s next run at an American Kennel Club (AKC) agility ...