Yet these days the National Football League is the crowdpleaser. That's because football is a much more appealing television sport. Recently, in Wisconsin, a regularseason game of the Green Bay Packers got more than twice as many local viewers as a baseball playoff contest featuring the Milwaukee Brewers."One of the first things I asked him this morning was how did he feel because you're concerned if he's going to have any swelling or soreness," Frazier said. "He said I feel pretty good. The only soreness was from inactivity, not being able to run and twist and turn.

Since then, Nadkarninow at the University of Utahhas been doing just that, including as a grantee for National Geographic. We caught up with the scientist between treeclimbing expeditions to talk about some of her most interesting strategies to get people hooked on nature. (Test your environmental IQ with our quiz.)For many urban kids, exposure to nature is limited to a tiny city park or water f