Author Laurie Lawlor, who shared her book Rachel Carson last Friday suggests that we can all walk and ride our bikes more often. “Don’t ride as a passenger in a car if you can travel another way,” she says. Laurie rides the train Columbia College, where she teaches. She enjoys walking across “the Loop”. “It’s different from walking in the country, but still very full of discoveries about nature and people.” She keeps her eyes out for blooming flowers, soaring gulls, and the “plodding of persistent pigeons”.