The Houston area has over 150 active faults (estimated to be 300 active faults) with an aggregate length of up to 310 miles (500 km),[67][68][69] including the Long Point–Eureka Heights fault system which runs through the center of the city. No significant historically recorded earthquakes have occurred in Houston, but researchers do not discount the possibility of such quakes having occurred in the deeper past, nor occurring in the future. Land in some areas southeast of Houston is sinking because water has been pumped out of the ground for many years. It may be associated with slip along the faults; however, the slippage is slow and not considered an earthquake, where stationary faults must slip suddenly enough to create seismic waves.[70] These faults also tend to move at a smooth rate in what is termed "fault creep",[61] which further reduces the risk of an earthquake.

Houston is considered an automobile-dependent city, with an estimated 77.2% of commuters driving alone to work in 2016,[257] up from 71.7% in 1990[258] and 75.6% in 2009.[259] In 2016, another 11.4% of Houstonians carpooled to work, while 3.6% used public transit, 2.1% walked, and 0.5% bicycled.[257] A commuting study estimated that the median length of commute in the region was 12.2 miles (19.6 km) in 2012.[260] According to the 2013 American Community Survey, the average work commute in Houston (city) takes 26.3 minutes.[261] A 1999 Murdoch University study found that Houston had both the lengthiest commute and lowest urban density of 13 large American cities surveyed,[262] and a 2017 Arcadis study ranked Houston 22nd out of 23 American cities in transportation sustainability.[263] Harris County is one of the largest consumers of gasoline in the United States, ranking second (behind Los Angeles County) in 2013.[264]
The eight-county Greater Houston metropolitan area contains over 25,000 miles (40,000 km) of roadway, of which 10%, or approximately 2,500 miles (4,000 km), is limited-access highway.[267] The Houston region's extensive freeway system handles over 40% of the regional daily vehicle miles traveled (VMT).[267] Arterial roads handle an additional 40% of daily VMT, while toll roads, of which Greater Houston has 180 miles (290 km), handle nearly 10%.[267]

Although the church has no written policy forbidding the ordination of women, it has traditionally ordained only men. In recent years the ordination of women has been the subject of heated debate, especially in North America and Europe. In the Adventist church, candidates for ordination are chosen by local conferences (which usually administer about 50–150 local congregations) and approved by unions (which serve about 6–12 conferences). The General Conference, the church's world headquarters, claims the right to declare the worldwide qualifications for ordination, including gender requirements. The General Conference has never stated that ordination of women contravenes the Bible, but the General Conference has requested that no local conference ordain women until all parts of the world church accept the practice.[77]

During all the period from the deliverance out of Egypt to the captivity in Babylon, the people of God were distinguished from the nations about them by the worship of the only true God, and the observance of His holy day. The proper observance of the true Sabbath would preserve them from idolatry, being a constant reminder of the one God, the Creator of all things. Even when Jerusalem was suffering from the attacks of the Babylonians, God assured His people, through the prophet Jeremiah, that if they would hallow the Sabbath day, great should be their prosperity, and the city should remain forever (Jeremiah 17:18). This shows that the spiritual observance of the Sabbath was the supreme test of their right relation to God. In those prophecies of Isaiah, which deal primarily with the restoration from Babylon, remarkable promises were made to those who would observe the Sabbath, as recorded in Isaiah 56:1-7.
_{George Bush Intercontinental Airport (IAH), located 23 miles (37 km) north of Downtown Houston between Interstates 45 and 69, is the eighth busiest commercial airport in the United States (by total passengers and aircraft movements) and forty-third busiest globally.[286][287] The five-terminal, five-runway, 11,000-acre (4,500-hectare) airport served 40 million passengers in 2016, including 10 million international travelers.[286] In 2006, the United States Department of Transportation named IAH the fastest-growing of the top ten airports in the United States.[288] The Houston Air Route Traffic Control Center is located at Bush Intercontinental.}
^{The Houston–The Woodlands–Sugar Land MSA's gross domestic product (GDP) in 2016 was $478 billion, making it the sixth-largest of any metropolitan area in the United States and larger than Iran's, Colombia's, or the United Arab Emirates' GDP.[150] Only 27 countries other than the United States have a gross domestic product exceeding Houston's regional gross area product (GAP).[151] In 2010, mining (which consists almost entirely of exploration and production of oil and gas in Houston) accounted for 26.3% of Houston's GAP up sharply in response to high energy prices and a decreased worldwide surplus of oil production capacity, followed by engineering services, health services, and manufacturing.[152]}
In August 2005, Houston became a shelter to more than 150,000 people from New Orleans, who evacuated from Hurricane Katrina.[40] One month later, about 2.5 million Houston-area residents evacuated when Hurricane Rita approached the Gulf Coast, leaving little damage to the Houston area. This was the largest urban evacuation in the history of the United States.[41][42] In September 2008, Houston was hit by Hurricane Ike. As many as 40% of residents refused to leave Galveston Island because they feared the type of traffic problems that had happened after Hurricane Rita.
^{The Unification Church has a regular day of worship on Sunday, but every eight days Unificationists celebrate the day of Ahn Shi Il, considered as Sabbath but cycling among the weekdays of the Gregorian calendar. The Family Pledge, formerly recited at 5:00 a.m. on Sundays, was moved to Ahn Shi Il in 1994 and includes eight verses containing the phrase "by centering on true love".
Well known but distant offshoots are the Davidian Seventh-day Adventist organization and the Branch Davidians, themselves a schism within the larger Davidian movement.[135] The Davidians formed in 1929, following Victor Houteff after he came out with his book The Shepherd's Rod which was rejected as heretical. A succession dispute after Houteff's death in 1955 led to the formation of two groups, the original Davidians and the Branches. Later, another ex-Adventist, David Koresh, led the Branch Davidians until he died in the 1993 siege at the group's headquarters near Waco, Texas.}
Research funded by the U.S. National Institutes of Health has shown that the average Adventist in California lives 4 to 10 years longer than the average Californian. The research, as cited by the cover story of the November 2005 issue of National Geographic, asserts that Adventists live longer because they do not smoke or drink alcohol, have a day of rest every week, and maintain a healthy, low-fat vegetarian diet that is rich in nuts and beans.[47][48] The cohesiveness of Adventists' social networks has also been put forward as an explanation for their extended lifespan.[49] Since Dan Buettner's 2005 National Geographic story about Adventist longevity, his book, The Blue Zones: Lessons for Living Longer From the People Who've Lived the Longest, named Loma Linda, California a "Blue Zone" because of the large concentration of Seventh-day Adventists. He cites the Adventist emphasis on health, diet, and Sabbath-keeping as primary factors for Adventist longevity.[50][51]
_{^ Adventist historian George R. Knight notes several other leading evangelicals who considered Adventist doctrine to be heterodox; these included Donald Barnhouse (prior to 1950), Norman F. Douty, Herbert S. Bird, E. B. Jones, Louis B. Talbot and M. R. DeHaan. See "Questions on Doctrine, annotated edition". Andrews University Press. 2003: xiii–xxxiii Sabbath-keeping}