In some ways the green movement has created a new generation of skeptics by generating doubt about the benefits of new products and services designed to mitigate human impact on the environment. But “greenwash” charges should not be lathered on the ones that really do deliver the goods. In heavy construction equipment, there is a huge opportunity for machinery to move down the green path, and some manufacturers are gingerly moving in that direction. Iowa State University Caterpillar Inc. is about to go into production with its diesel-electric dozer, which is 25% more fuel-efficient than its predecessor. Intelligent compaction is
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.