Ahmed Qayyum Madison Werner Kathryn Youngblood Jenna R. Jambeck Tahiya Chowdhury SpheriCity: Designing Trustworthy Conversational AI for Sustainability Decision Support. 167-182 2026 COMPASS https://doi.org/10.1145/3811242.3819112 conf/dev/2026 db/conf/dev/compass2026.html#QayyumWYJC26