AJ 20.10.22: Climate crisisOur first building study is of Foster + Partners Madrid warehouse retrofit, which is carbon neutral in operation. Then we take a look at Caruso St Johns retrofit of a factory in Eindhoven which has been transformed into a mixed use development. Closer to home, Architype and Feilden + Mawson have changed a Cambridge telephone exchange into offices. Continuing our focus on building design in the time of climate emergency, you can read an embodied energy