Rising temperatures and human activity are increasing storm runoff and flash floods

• Researchers have demonstrated for the first time that runoff extremes have been dramatically increasing in response to climate and human-induced changes. 
• Their findings show a large increase in both precipitation and runoff extremes driven by both human activity and climate change. 
• They also found that storm runoff has a stronger response than precipitation to human-induced changes (climate change, land-use land-cover changes, etc).
•  These losses have been increasing over the past 50 years and have exceeded $30 billion per year in the past decade. 

SOURCE : SCIENCE DAILY