Msonkhano wa ku California Urban Forest wa 2009: "Kodi Tsopano? Kodi Kenako? A New Direction for Urban and Community Forestry” inali yopambana kwambiri. Opitilira 100 adadzaza chipinda chamsonkhano ku Ventura monga Andy Lipkis, Purezidenti wa Anthu a Tree, adapereka nkhani yaikulu yakuti "Chilengedwe Chogwira Ntchito ndi Gulu la Mizinda Yotetezeka, Yathanzi ndi Yokhazikika". Ophunzira adapezekapo pamisonkhano yofotokoza zatsopano, njira zoyendetsera, ndi kafukufuku wamakono ndi chitukuko cha nkhalango zakumidzi. Magulu opitilira 25 a California ReLeaf Network adayimilira.
Msonkhanowu unayendetsedwa ndi a California Urban Forests Council. Maulaliki apezeka posachedwa kudzera patsamba lino.