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25. Chittagong, Bangladesh
> 2020 population: 5.0 million
> Bangladesh population at risk of sea-level rise by 2050: 43.0 million
> Bangladesh CO2 emissions from fuel combustion in 2017: 88.1 million metric tons (0.53 metric tons per person)
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24. Yangon, Myanmar
> 2020 population: 5.3 million
> Myanmar population of land area at risk of sea-level rise: 3.3 million
> Myanmar CO2 emissions from fuel combustion in 2017: 25.3 million metric tons (0.47 metric tons per person)
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23. Kitakyushu-Fukuoka M.M.A., Japan
> 2020 population: 5.5 million
> Japan population of land area at risk of sea-level rise: 5.5 million
> Japan CO2 emissions from fuel combustion in 2017: 1,205.1 million metric tons (9.50 metric tons per person)
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22. Philadelphia, United States
> 2020 population: 5.7 million
> United States population of land area at risk of sea-level rise: 2.2 million
> United States CO2 emissions from fuel combustion in 2017: 5,269.5 million metric tons (16.21 metric tons per person)
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21. Suzhou, Jiangsu, China
> 2020 population: 7.1 million
> China population of land area at risk of sea-level rise: 95.0 million
> China CO2 emissions from fuel combustion in 2017: 9,838.8 million metric tons (7.10 metric tons per person)