Why are streets with trees better received than those without? Why is dappled light through leaves more pleasant than sun beating against the pavement? What is our affiliation to rolling streams and bubbling brooks? Why do little kids love playing in piles of fall leaves? According to biologist E.O. Wilson, the answer is because a connection to nature is hardwired into our DNA, leaving us with a biological propensity to feel better in the presence of natural systems.
