Sales of traditional hybrids, plug-ins and all-electric cars are down about 5 percent in 2014 — while truck and SUV sales have jumped. Mark Ralston/AFP/Getty Images hide caption

Ebola Virus, Transmission Electron Micrograph Of The Ebola Virus, Rna Virus, Cause Of Hemorrhagic Fever. BSIP/UIG via Getty Images hide caption

Members of the California Nurses Association rallied in Sacramento, Calif., in May, in anticipation of contract negotiations with Kaiser Permanente that began in this fall. April Dembosky / KQED hide caption

Caroline De Haas, 34, launched Macholand.fr after a company responded dismissively to her complaint against its sexist advertising. Courtesy of EGAE hide caption

Several hundred protesters picket the opening night of the Metropolitan Opera season at Lincoln Center, Sept. 22, 2014. "You will be made to destroy that set," Jeffrey Wiesenfeld said. John Moore/Getty Images hide caption

A notice in a store window in New York City announces a retail job opening. Now that unemployment has slipped below 6 percent, there's renewed interest in what the Federal Reserve's target for joblessness should be. Spencer Platt/Getty Images hide caption

In Birdman, Michael Keaton (a real-life former Batman) plays a former movie superhero who's trying to get a grasp on his career. Atsushi Nishijima/ Fox Searchlight hide caption