15. Istanbul, Turkey
> Overall score (0-100): 39.3
> Potential sea-level rise impact 2050 (0-100): 2.4 (33rd largest impact)
> Avg. annual temperature, 1970-2000: 57.3°F
> Avg. annual temperature, 2050: 61.0°F (39th largest increase)
> Population, 2018: 14,751,000
14. Toronto, Canada
> Overall score (0-100): 39.3
> Potential sea-level rise impact 2050 (0-100): 1.0 (44th largest impact)
> Avg. annual temperature, 1970-2000: 47.1°F
> Avg. annual temperature, 2050: 52.6°F (12th largest increase)
> Population, 2018: 6,082,000
13. Hong Kong, Hong Kong
> Overall score (0-100): 40.7
> Potential sea-level rise impact 2050 (0-100): 15.3 (16th largest impact)
> Avg. annual temperature, 1970-2000: 73.4°F
> Avg. annual temperature, 2050: 76.2°F (65th largest increase)
> Population, 2018: 7,429,000
12. Chicago, US
> Overall score (0-100): 40.7
> Potential sea-level rise impact 2050 (0-100): 1.0 (44th largest impact)
> Avg. annual temperature, 1970-2000: 50.3°F
> Avg. annual temperature, 2050: 55.9°F (7th largest increase)
> Population, 2018: 8,864,000
11. Manila, Philippines
> Overall score (0-100): 40.8
> Potential sea-level rise impact 2050 (0-100): 37.0 (6th largest impact)
> Avg. annual temperature, 1970-2000: 81.3°F
> Avg. annual temperature, 2050: 84.0°F (66th largest increase)
> Population, 2018: 13,482,000