Louis Fernandez walks along a flooded Collins Avenue in Miami Beach in September 2015. The city is tackling sea-level rise by rebuilding roads and installing new storm sewers and pumps.
Bo Sailor watches Thursday as high surf crashes into the seawall before spilling onto Channel Drive in Montecito, Calif. An ocean-water-quality advisory was issued for the area after a number of December and early-January storms pummeled Southern California with heavy rainfall.
Two cars are submerged in floodwaters in a park in Kimmswick, Mo. Gov. Jay Nixon has declared a state of emergency because of widespread flooding around the state, which has closed many roads.
People paddle past a flooded house as water that breached dams upstream continues to reach the eastern part of the state on October 8, 2015 in Andrews, S.C. Many dams in the state — and across the country — are in need of repair.
Joe Raedle/Getty Images
A man kayaks on Tall Pines Circle in Columbia, S.C., Sunday. Many parts of South Carolina experienced record rainfall over the weekend, triggering widespread flooding.
Sean Rayford/Getty Images
This is a calculated flood map for the city of St. Louis. Water depth goes from deep (dark blue) to shallow (white, light blue). Floodwater can come from the Illinois, Upper Mississippi and Missouri rivers, as well as from heavy local precipitation.
Courtesy of Dag Lohmann/Katrisk
A man shoots a tranquilizer dart to put a hippopotamus to sleep at a flooded street in Tbilisi, Georgia, on Sunday. At least eight people died and several are missing as a result of heavy rainfall and floods overnight in the Georgian capital.