At least global warming may get Americans off the couch more

[...] that good global warming side effect is not likely to extend to the deep south and especially the desert southwest because hotter summer days may keep people inside.

The warmer it gets, the more people go outside, which he said makes sense.

[...] it gets too hot.

Dr. Jonathan Patz, director of the Global Health Institute at the University of Wisconsin-Madison, faulted the study for not taking into account people who have jobs that require lots of physical activity nor the growing popularity of winter sports.