- Extreme heat is set to increasingly disrupting air travel as thinner air reduces an aircraft's ability to generate sufficient lift and thrust for safe takeoffs, a challenge exacerbated by human-caused climate change.
- American Airlines recently offered compensation to passengers in Las Vegas on July 24 when temperatures reached 114 degrees Fahrenheit, requiring the airline to reduce the plane's weight to ensure a safe departure, a standard industry practice in hot conditions.
- Pilots and airlines meticulously calculate safe takeoff capabilities by considering factors such as aircraft weight, airport elevation, and ambient temperature, with higher-elevation airports and shorter runways being particularly susceptible to heat-related restrictions.
- When preflight calculations indicate an unsafe departure, airlines may opt to reduce cargo, carry less fuel, await cooler temperatures, or solicit volunteers to take a subsequent flight, as seen in past incidents in Phoenix and Denver.
- Projections indicate that some airports could face weight restrictions on 10% to 30% of flights during the hottest parts of the day by midcentury, and cities like Phoenix and Las Vegas have already seen a significant increase in days with extreme temperatures impacting flights.
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