caused the airport plan to be permanently shelved. It has developed into the Orange County Great Park and housing. 21st century In the 21st century, the social landscape of Orange County has continued to change. The opioid epidemic saw a rise in Orange County, with unintentional overdoses becoming the third highest contributor of deaths by 2014. As in other areas, the deaths disproportionately occurred in the homeless population. However, deaths were widespread among affluent and poorer areas in Orange County, with the highest at-risk group being Caucasian males between the ages of 45-55. A 2018 study found that supply reduction was not sufficient to preventing deaths. In 2008, a report issued by the Orange County Superior Court found that the county was experiencing a pet "overpopulation problem," with the growing number of pets leading to an increase in euthanasias at the Orange County Animal Shelter to 13,000 for the year alone. Following the 2016 presidential election, Santa Ana become a sanctuary city for immigrants. This created an intense debate in Orange County surrounding politics toward immigration, with many cities opposing pro-immigration policies. The COVID-19 pandemic in Orange County disproportionately affected lower income and Latino residents. Implementation of renewable energy and climate change awareness in Orange County increased, with the city of Irvine pledging to be a zero-carbon economy by 2030 and Buena Park, Huntington Beach, and Fullerton pledging to move to 100% clean energy. Residential solar panel installation has rapidly increased, even among middle-income families, as a result of the state's residential solar program which began in 2006. In the 2010s, campaigns to conserve remaining natural areas gained awareness. By the early 2020s, some success was found, with the conservation of 24 acres in the West Coyote Hills of a total 510 acres and the Genga/Banning Ranch project moving forward, conserving some 385 acres, which was part of the Tongva village area of Genga. In 2021, the commemorative 1.5 acre Putuidem village opened after years of delays and campaigning by the Acjachemen. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (16.6%) is water. It is the smallest county by area in Southern California, being just over 40% the size of the region's next smallest county, Ventura. The average annual temperature is about . Orange County is bordered on the southwest by the Pacific Ocean, on the north by