As a crowd looks on, sea lions injured by chlorine contamination at a rehab center are released in Laguna Beach, Calif., Tuesday, June 2, 2015. Police believe someone put chlorine in the water filtration system April 27, at the center, which works to rescue, rehabilitate and release sea lions. (Mark Rightmire/The Orange County Register via AP) MAGS OUT; LOS ANGELES TIMES OUT; MANDATORY CREDIT
Este viernes 5 de junio se celebra esta fecha, instaurada hace 47 años por la Organización de las Naciones Unidas.