Time Out says
Every tree sold at these pop-up forests springing up in the capital will result in another tree being planted in the drylands of Africa via the Charity Tree Aid. This year they hope to hot their 200,00th tree, helping to re-green environments and improve the lives of families living in Ethiopia, Burkina Faso and Mali. Ten forests will be selling trees, holly, mistletoe and wreaths across Dulwich, Stoke Newington, Highbury, Lavender Hill, Finsbury Park and other parts of London with a delivery service available. Check dates and locations via the Christmas Forest website.