As a local group you probably don't have the resources to create your own non profit with your own bank account. You also probably don't want to use your personal bank account to receive donations and manage the expenses for your group. We have created a non profit based in Brussels that can act as a fiscal sponsor for you (in the eurozone), think of it as your financial back office.
Local groups don't usually have a bank account where you can wire money to, nor do they have the administrative resources to do accounting and to write the necessary reports you need. All for Climate is set up as a proper non profit entity based in Brussels that you can trust. We act as a shared administrative back office so that local groups can focus on their actions.