Action 52: Plant a tree. Autumn is a good time to plant trees – if you have space why not plant an apple tree in your garden? Alternatively why not sponsor a tree? Trees, as they grow, support many different creatures as well as absorbing carbon dioxide.
The National Trust aims to plant 20 million trees by 2030: https://www.nationaltrust.org.uk/features/plant-a-tree?intcmp=plant_atree_summer21_propertypages_teaser