Annals of the New York Academy of Sciences (Jan. 2015)
- Mean annual temperature increased 3.4 degrees Fahrenheit between 1900 and 2013.
- Mean annual precipitation increased 8 inches between 1900 and 2013.
- Sea levels in NYC have risen 1.1 foot since 1900.
And it’s only going to get worse:
- By the 2050s, future mean annual temperatures will increase 4.1 to 5.7 degrees Fahrenheit, and 5.3 to 8.8 degrees Fahrenheit by the 2080s. The frequency of heat waves will also triple from two to six by the 2080s, the number of 90-degree days will double, and the temperature will rise above 100 degrees at least three to five days a year.
- By the 2050s, future mean annual precipitation will increase 4 to 11 percent; by the 2080s, it’ll increase 5 to 13 percent.
- By the 2050s, sea levels will increase from 11 inches to 21 inches; by the 2080s, it’ll be 18 to 39 inches. That’s enough for daily high tides to flood Queens every single day. The current flood zones will be doubled by 2100, putting 99 square feet of the city at risk for flooding.
Luckily, the city has developed an extensive plan to try to ensure these predictions don’t come true, including multi-million-dollar flood protection systems, shoreline upgrades, and armored levees…