Babban jami'in kula da gandun daji na USDA Tom Tidwell ya ziyarci Oakland a ranar Litinin, Agusta 20 don gabatar da cak na $ 181,000 zuwa Oakland ReLeaf don tallafawa Binciken Green Street Research, Nunawa da Ayyukan Ilimi gami da dashen bishiyoyi da kula da su a cikin birnin Oakland.
Don ganin ƙarin hotuna na taron, ziyarci California ReLeaf's Facebook page.