Davis has undergone a major transformation from the mid-20th century to today, growing from a small college town of about 3,000 residents and 1,500 students to a world-class university city of 80,000 area residents and 35,000 students. Major features of this revolution include the creation of a vibrant downtown, environmentally sensitive politics, diverse and innovative neighborhoods, and a citywide system of bike lanes. A thriving University of California at Davis campus was the economic dynamo that attracted talented students and faculty. Their environmentalist values spurred innovations in solar energy, waste recycling, bicycle infrastructure, subsidized public transit, energy-saving construction, and farm-to-fork localization of food supplies, among other new civic directions that remain an essential part of the city's culture today.