United Airlines Ventures (UAV) has made an investment in Heirloom's Direct Air Capture (DAC) technology to support sustainable aviation goals and achieve net zero emissions. The UAV Sustainable Flight Fund (UAVSFF) secured the right to remove 500,000 tons of CO₂ by integrating Heirloom's measurable and quantifiable technology into its decarbonization portfolio. This purchase will contribute to sustainable aviation fuel production or permanent underground storage. Heirloom's DAC technology uses limestone to capture CO₂ directly from the air, offering a cost-effective and scalable solution powered by renewable energy. The collaboration between UAV and Heirloom marks the fund's first investment in a company commercializing DAC technology, emphasizing Heirloom's role as a key player in sustainable carbon capture. UAV is actively investing in various Sustainable Aviation Fuel (SAF) production methods, including algae-based fuel, ethanol-based fuel, garbage-to-fuel conversion, and power-to-liquid fuel derived from green hydrogen. Furthermore, Heirloom, founded in 2020, has established itself as a leading DAC company in the US, with projects removing thousands of tons of CO₂ annually. Its upcoming Louisiana DAC hub, funded by a US Department of Energy award, aims to remove one million tons per year. Heirloom's customers include major corporations like Microsoft and Stripe, showcasing its commitment to genuine emissions reductions. The article highlights UAV's commitment to achieving net zero emissions by 2050 through investments in sustainable technologies and decarbonization efforts.