Thanks Bill :)

phi-architecture.com/mvhr-air-intak… Participants welcomed to support a national mapping of our air quality through MVHR air intake filter analysis. Phi Architecture in collaboration with Green Building Store @passivhausnews & Nottingham University #passivhaus #billbutch #passivhausPlus

The Barge, Ripon PH Certification Delighted to conclude my EnerPHit Passivhaus Self Build with Certification from Passivhaus Institut :) Designed, modelled in PHPP & executed with a great team of craftsmen over a long & arduous two years-so worth it, thank you team and family:)

Have MVHR? Please would you volunteer to join this research? We have had fantastic support in the take up of volunteers - thank you- but more would be even better to get a truly national picture of air quality.

Thanks so much to three more special volunteers this week. Please do join in if you can - we are so excited about being able to map out air quality in this way:)

Join me and school strikers for global #climatestrike & week of action starting on September 20. Let's act like this is a #ClimateEmergency: globalclimatestrike.net

Brazil’s #AmazonRainforest deforestation is exploding "The #deforestation surge in 2019 can definitely be blamed on the #Bolsonaro administration" "Nothing has changed in the presidential administration’s discourse" 2020 will be worse! Team4Nature sciencemag.org/news/2019/11/b…