mathematical modeling
Tropical Storm Colin brought big waves to Fort Myers Beach in Fort Myers, Fla., in early June. Given the threat of serious flooding, Gov. Rick Scott declared a state of emergency in the area. Joe Raedle/Getty Images hide caption
Climate Change Complicates Predictions Of Damage From Big Surf
A plane sprays pesticide over the Wynwood neighborhood of Miami on Aug. 6. That's just one way health officials are battling back Zika-carrying mosquitoes in the area. Joe Raedle/Getty Images hide caption
Kenyan health officials take the temperatures of passengers arriving at the Nairobi airport on Thursday. Kenya has no reported cases of Ebola, but it's a transportation hub and so is on alert. Simon Maina/AFP/Getty Images hide caption
A Tunisian protester holds a baguette while taking to riot police in January 2011. Martin Bureau/AFP/Getty Images hide caption