I looked up the Jubilee Church. Supposedly it has a roof that breaks down NOx. So I asked ChatGPT to do some napkin math and… Assuming ~1,200 m² of TiO₂-coat

I looked up the Jubilee Church. Supposedly it has a roof that breaks down NOx. So I asked ChatGPT to do some napkin math and… Assuming ~1,200 m² of TiO₂-coated surface removing ~16 g NOₓ/m²/year → 1,200 × 16 = 19,200 g = 19.2 kg/year; with an average car emitting ~5 kg NOₓ/year (based on 15,000 km/year at ~0.33 g/km), the roof offsets ~3.8 cars annually.