If planes seem louder in 2026, it is likely due to a combination of atmospheric physics and logistical shifts. Hotter air caused by climate change is less dense, which forces planes to climb more slowly after takeoff, keeping them closer to the ground for longer and spreading noise over a wider area. Additionally, at night, a phenomenon called "temperature inversion" can trap sound waves near the ground, making engines sound significantly louder than during the day. Furthermore, many major airports have implemented "NextGen" satellite-based navigation, which creates highly precise "lanes" in the sky. While this saves fuel, it means the same residents under these fixed narrow paths experience a constant "barrage" of noise, whereas older radar systems used to spread flight paths more broadly across different neighborhoods.