16. Northeastern United States: Pennsylvania, New York, New Jersey
In August 2018, historic levels of rainfall led to disaster declarations in several counties in New Jersey, and substantial flooding throughout parts of New York and New Jersey. According to the Environmental Protection Agency, flood events have increased in frequency and intensity throughout much of the Northeast since 1965.
17. Pacific Northwest: Coast of Washington State
According to the EPA, flood events have increased in frequency throughout much of the Pacific Northwest since 1965. The surge in flood activity forced the Hoh, a Native American tribe once based at the mouth of the Hoh River, to move its reservation to higher ground.
18. Midwest: Illinois, Iowa, Missouri, Nebraska
According to the EPA, flood events have increased in frequency and intensity throughout much of the Midwest and Great Plains region since 1965. In the spring of 2019, heavy rainfalls along the Illinois, Missouri, Arkansas, and Mississippi River corridors have led to substantial flooding throughout the Midwest, leading to substantial property damage and dozens of deaths.
19. South Florida
According to the NOAA, the maximum daily water levels in South Florida during king tides, the highest tides of the year, have increased since 1994. Many scientists have concluded that rising king tides are a direct result of human-caused climate change, and can increase the risk of tidal flooding in coastal areas. One study published in the June 2016 edition of the peer-reviewed journal Ocean & Coastal Management found that frequency of tide-induced flooding events in Miami Beach has increased by more than 400% since 2006.
20. Southwest: Four Corners Region
According to the National Climate Assessment, human-induced climate change has contributed to increased heat, drought, and insect outbreaks in the Southwest and four-corners region, which includes Colorado, Utah, Arizona, and New Mexico and is the hottest and driest part of the United States. The rise in extreme weather conditions has led to increased wildfires, declines in water supplies, reductions in agricultural output, and heat-related health issues in cities. These are likely to continue to increase in the future.