Business groups and organized labor are at odds over the nomination of David Michaels, President Obama’s pick to head the Occupational Safety and Health Administration. They agree that Michaels, if confirmed by the Senate, would likely shift OSHA’s focus from voluntary compliance programs to stronger enforcement. While unions typically support that approach, business organizations are worried Michaels would take an adversarial approach toward employers, and groups like the U.S. Chamber of Commerce are pressing for the Senate to schedule a confirmation hearing. Michaels, an epidemiologist, served as assistant secretary of energy for environment, safety and health from 1998 to 2001.
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.