An example of people adapting to their environment is

Those who live in high altitudes such as those in the Himalayas have adapted by having a higher red blood cell count to store more oxygen as oxygen levels are low at high altitudes they also have a larger lung capacity to breath in more oxygen per breath. These adaptations are evolutionary and not ones they choose themselves. 

Population of this city. also, look for information on available public transit, bike-sharing, and other commuting options. use the information you find and write about it promoting alternative transportation