Forscher fuhren 52.000 Meilen kreuz und quer durch die USA, um die Emissionen von 96 Abwasseranlagen zu messen. Dabei stellten sie fest, dass die Anlagen etwa doppelt so viel Lachgas und Methan ausstoßen – beides starke Treibhausgase –, wie von der EPA geschätzt [Nature Water]

„Comprehensive assessment of the contribution of wastewater treatment to urban greenhouse gas and ammonia emissions“ was published Oct. 8 in Nature Water [https://doi.org/10.1038/s44221-025-00490-z](https://doi.org/10.1038/s44221-025-00490-z)

I wonder if their emissions from driving 52,000 miles exceed the difference between the estimated and measured emissions from the facilities in the same period… obviously that’s unfair because systemic under-estimation of emissions is a huge problem for climate modelling, but it gave me a chuckle thinking about it.