Workplace drug testing for marijuana may need updating in light of changing laws, a case before the Colorado Supreme Court suggests. Kai-Huei Yau/MCT/Landov hide caption

itoggle caption Kai-Huei Yau/MCT/Landov

Tobacco giant Reynolds American is buying Lorillard and acquiring Newport, a popular menthol cigarette. In a shrinking market, Newport is one of the few U.S. brands gaining market share. It is particularly popular among African-American smokers. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

We can all work up a stinky sweat — welders, ballerinas and number-crunchers alike. Would you want to know? emreogan/iStockphoto hide caption

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A team-building exercise involving marshmallows and knives is led by Create-Learning. This is relatively tame compared with some co-worker bonding activities. Clark Dever/Courtesy of Create-Learning hide caption

itoggle caption Clark Dever/Courtesy of Create-Learning

Helping employees take the time to go for a walk instead of reaching for junk food when energy flags boosts productivity, some firms find. Jamie Grill Photography/Tetra Images/Corbis hide caption

itoggle caption Jamie Grill Photography/Tetra Images/Corbis

For homes near the Hague River in downtown Norfolk, flooding is now a regular event. On a calm day, at high tide, the water laps just inches from the top of the barrier. Yuki Noguchi/NPR hide caption

itoggle caption Yuki Noguchi/NPR

A coal-fired power plant in Colstrip, Mont. The Environmental Protection Agency wants U.S. power plants to cut carbon pollution by 30 percent. Matt Brown/AP hide caption

itoggle caption Matt Brown/AP

Workplace bullying even happens at the NFL. Investigators concluded that Miami Dolphins lineman Jonathan Martin was harassed by other teammates. John Minchillo/AP hide caption

itoggle caption John Minchillo/AP