actionactivismadvocacyaftercoronaartberlinbookcitiescityclimatecloudscommonscommunityconceptsconferencecontextsconversationcoviddarkdemocracydensitydispatchexpropriationhousingiiinformalinfrastructurelandlifelivesmakingmassivemobilizationmunicipalismpandemicplanningpoliticspostpresentationpropertypublicradicalrc21reclaimingrentresearchreviewroundtableseriessettlementssocialstrikestrugglessuburbantimestouristtransformurbanization