TABLE 2—

Projected Summer Regional Mean Daily Temperatures (°F) and Associated Heat-Related Premature Mortality, Aggregated Across the New York City Metropolitan Region, in the 1990s Versus the 2050s

Year, Scenario, Assumptions	Mean Summer Daily Temperature (SD)a	Total Regional Heat-Related Premature Deaths
1990s	72.9 (5.68)	1418
2050s A2b	76.7 (5.51)	2764
2050s A2 with acclimatization	76.7 (5.51)	2376
2050s B2c	75.8 (5.67)	2421
2050s B2 with acclimatization	75.8 (5.67)	2087

^aMean county-specific decadal summer daily temperature in °F (mean SD). Note that the same summer daily temperature simulations were applied in mortality risk assessments with and without acclimatization assumptions.

^bA2 scenario assumed rapid human population growth, relatively weak environmental concerns, and a lack of aggressive greenhouse gas regulations.

^cB2 scenario assumed more-moderate population growth and increased concerns about environmental sustainability, with more aggressive greenhouse gas regulations, compared with A2.