The twenty major cities most threatened by 1.6 foot rise in sea levels expected by 2070 as compiled by the Organization for Economic Cooperation and Development (OECD). Miami, Florida is the most threatened large city in the US.
20. Alexandria, Egypt
$562 Billion in exposed assets and 4,375,000 in exposed population average elevation 16 feet above sea level.
19. Virginia Beach, VA, USA
$582 billion in exposed assets and average elevation 15 feet.
18. Qingdao, China
$602 billion in exposed assets and average elevation 105 feet.
17. Nagoya, Japan
$624 billion in exposed assets and average elevation 46 feet.
16. Ho Chi Minh City, Vietnam
$653 billion in exposed assets and average elevation 13 feet.
15. Rotterdam the Netherlands
$826 billion in exposed assets and average elevation -13 feet.
14. Amsterdam the Netherlands
$844 billion in exposed assets and average elevation -6.6 feet.
13. Osaka-Kobe, Japan
$969 billion in exposed assets and average elevation 9.8 feet.
12. New Orleans, LA USA
$1,013 billion in exposed assets and average elevation 0 feet.
11. Ningbo, China
$1,013 billion in exposed assets and average elevation 30 feet.
10. Bangkok, Thailand
$1,118 billion in exposed assets and 5,138,000 in exposed population, average elevation 6.6 feet.
9. Hong Kong, China
$1,164 billion in exposed assets and average elevation 16 feet.
8. Tokyo, Japan
$1,207 billion in exposed assets and 2,521,000 in exposed population, average elevation 66 feet.
7. Tianjin, China
$1,231 billion in exposed assets and 3,790,000 in exposed population, average elevation 26 feet.
6.Mumbai, India
$1,598 billion in exposed assets and 11,418,000 in exposed population, average elevation 39 feet.
5. Shanghai, China
$1,771 billion in exposed assets and 5,451,000 in exposed population, average elevation 20 feet.
4. Kolkata, India
$1,961 billion in exposed assets and 14,014,000 in exposed population, average elevation 52 feet.
3. New York, NY-Newark, NJ USA
$2,147 billion in exposed assets and 2,931,000 in exposed population, average elevation 6.6 feet.
2. Guangzhou, China
$3,358 billion in exposed assets and 2,718,000 in exposed population, average elevation 32.8 feet.
1. Miami, FL USA
$3,513 billion in exposed assets and 4,795,000 in exposed population, average elevation 3.28 feet.
Where population figures are not indicated, they were not available.
http://www.businessinsider.com/cities-rising-sea-level-2011-5
http://www.oecd.org/env/cc/39721444.pdf