This kiosk at the National Museum of Natural History examines the causes and effects of El Niño. A geo-referenced interface allows visitors to explore El Niño’s early warning signs, its ancient past, its global connections, and its good — as well as its bad — consequences. To test their knowledge of the topic, visitors can also play “Blame it on El Niño,” a quiz with surprising facts about the events. As well as the installation, an online version of the interactive is available on the museum’s web site.