"The Benefits of Global Warming?"

Here.

From the linked New York Times article:

When retired people move to a warmer state, their life expectancy rises dramatically. In fact, 8 to 15 percent of the increase in American life expectancy over the last 30 years comes from people moving to warmer climates, according to research done by two economics professors, Olivier Deschenes at the University of California, Santa Barbara, and Enrico Moretti, at the University of California, Berkeley.

If life expectancy goes *up* in the case above, how can we explain the scary Washington Post graphic linked here?