The Tree Charter motivates cities and municipalities across Flanders (Belgium) to commit themselves to obtaining a certain number of additional trees ('the target') within the territory of their city or municipality. Started as a citizen's project, the Tree Charter aims to obtain more trees in Flanders and symbolises the collective struggle against climate change. The counting of the number of planted trees is an essential part of the Tree Charter. Some cities and municipalities work with a "Tree Counter" to keep track of how many trees are uprooted and planted in the public domain. The commitment of the local authorities is formalised in the Charter, but every authority decides on the practical implementation. Some cities pledge to plant one tree per citizen, other cities pledge to replace every uprooted tree by two or more new trees. The Tree Charter covers the period from 2019-2024, corresponding with a government term. All trees planted from the 1 January 2019 to 31 December 2024 are included in the count. Together with 178 local governments and 30 partners, 1.7 million trees will be planted by 2024. So far, more than 1 million trees have already been planted.