The Center for Urban Forestry Research's Tree Carbon Calculator (CTCC) tsopano ndi dziko. CTCC imapangidwa mu Excel spreadsheet, monga yakale, koma tsopano ikuphatikiza 16 US nyengo zones. Tsambali lili ndi zatsopano: mitundu ya kanjedza, zinthu zomwe zimatulutsa mpweya komanso zambiri zamphamvu. Tsopano ogwiritsa ntchito kuchokera kumphepete mwa nyanja kupita kumphepete mwa nyanja amatha kulowa zamoyo, kukula kwa mtengo (kutalika kwa m'mimba mwake) kapena msinkhu wa mtengo ndi kulandira chidziwitso cha kuchuluka kwa biomass ndi carbon zomwe zimasungidwa mumtengo, komanso phindu logwirizana ndi ntchito zosungira mphamvu.
Zotsatira zonse zimachokera ku deta ya kukula kwa mitengo kuchokera kumadera onse a nyengo ya 16. Kuti mudziwe zambiri kapena kutsitsa pulogalamuyi, pitani ku US Forest Service's Webusaiti ya Climate Change Resource Center. Menyu yothandizira ndi mndandanda wamafunso omwe amafunsidwa pafupipafupi akuphatikizidwa pa intaneti ndi CTCC. Thandizo lina laukadaulo likupezeka kudzera pa imelo pa psw_cufr@fs.fed.us.