Flash floods are becoming more common and more intense due to global warming. The impact of flash flooding can be particularly severe because, often, there is very little warning. Why are there more flash floods? The Environmental Defense Fund (EDF), a US-based nonprofit, said flash flooding has intensified because of increased rainfall and heat waves. Mateo Villalba Sanchez/Getty ImagesNon-environmental factors, such as new infrastructure and better weather warnings, can help prevent the impact of flash flooding.

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Persons: Ernesto Rodríguez Camino, —, Mateo Villalba Sanchez, Jess Neumann, John Marsham, Liz Stephens, shouldn't, Stephens Organizations: Service, European Environment Agency, Victoria University of Wellington, Spanish Meteorological Association, Environmental Defense Fund, EDF, World Health Organization, WHO, University of Reading, University of Leeds, US Army Corps of Engineers Locations: Spain, Florida, Europe, New Zealand, US