Conservation gains look good from a bike seat

OK, I survived my first RAGBRAI. Last year I rode a few days, but this year I pedaled the entire route, some 462 miles from the Missouri River at Sioux City to the Mississippi River at Davenport. My leg muscles and a few other body parts are definitely still a little sore. But I’m glad I made the entire ride this year.

Riding RAGBRAI is just a...