15 cities threatened by climate change

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15 Cities Threatened by Climate Change (DO NOT USE TAKEPART ONLY)
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15 cities threatened by climate change

#15: Amsterdam, Netherlands

(Photo credit: Gabriel Perez via Getty Images)

Population at risk in 2005: 839,000

Estimated population at risk in 2070: 1.4 million

#14: Dhaka, Bangladesh

(Photo credit: ©Rezwan Razzaq via Getty Images)

Population at risk in 2005: 844,000

Estimated population at risk in 2070: 11.1 million

#13: Bangkok, Thailand

(Photo credit: Medioimages/Photodisc via Getty Images)

Population at risk in 2005: 907,000

Estimated population at risk in 2070: 5.1 million

#12: Tianjin, China

(Photo credit: Dong Wenjie via Getty Images)

Population at risk in 2005: 956,000

Population at risk in 2070: 3.8 million

#11: Tokyo, Japan

(Photo credit: Michael H via Getty Images)

Population at risk in 2005: 1.1 million

Estimated population at risk in 2070: 2.5 million

#10: New Orleans, LA

(Photo credit: Mario Tama via Getty Images)

Population at risk in 2005: 1.1 million

Estimated population at risk in 2070: 1.4 million

#9: Alexandria, Egypt

(Photo credit: MOHAMED EL-SHAHED via Getty Images)

Population at risk in 2005: 1.3 million

Estimated population at risk in 2070: 4.4 million

#8: Osaka-Kobe, Japan

(Photo credit: tupungato)

Population at risk in 2005: 1.4 million

Estimated population at risk in 2070: 2.0 million

#7: New York City/Newark

(Photo credit: kanonsky via Getty Images)

Population at risk in 2005: 1.5 million

Estimated population at risk in 2070: 2.9 million

#6: Kolkata (Calcutta), India

(CRSHELARE via Getty Images)

Population at risk in 2005: 1.9 million

Estimated population at risk in 2070: 14 million

#5: Ho Chi Minh City, Vietnam

(Photo credit: Anders Blomqvist via Getty Images)

Population at risk in 2005: 1.9 million

Estimated population at risk in 2070: 9.2 million

#4: Miami, FL

(Photo credit: Witold Skrypczak via Getty Images)

Population at risk in 2005: 2.0 million

Estimated population at risk in 2070: 4.8 million

#3: Shanghai, China

(Photo credit: hudiemm via Getty Images)

Population at risk in 2005: 2.4 million

Estimated population at risk in 2070: 5.5 million

#2: Guangzhou, China

(Photo credit: View Stock via Getty Images)

Population at risk in 2005: 2.7 million

Estimated population at risk in 2070: 10.3 million

#1: Mumbai, India

(Photo credit: Ed Freeman via Getty Images)

Population at risk in 2005: 2.8 million

Estimated population at risk in 2070: 11.4 million

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Ocean views may not be so sought after in the coming decades, as rising sea levels could wreak havoc on some of the world's most popular cities and vacation spots.

Today roughly 40 million people around the world are exposed to catastrophic-grade coastal floods. Typically, these occur only once in 100 years. But the number of people who could be majorly affected by such weather events could rise to 150 million people by 2070, based on an ongoing report done by the Organization for Economic Cooperation and Development. The report analyzed world cities most vulnerable to the effects of climate change—namely rising sea levels and increased storm activity.

Here are the top 15 cities that could find themselves hit by dangerous flooding in the coming decades.

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