'Climate Action', a European organisation, is uniting people who care about the environment across Europe, whilst raising awareness about climate change. They had the bright idea of encouraging people to plant trees by posting them to those who sign up (do it, it's free!) and encouraging them to share a photo of their tree online. The website itself is fabulous and even has useful links to things like European Climate Change Policy.
Take a look here: http://clickatree.europa.eu/metanavigation/home.html and see South Devon on the map if you want to see me planting my little tree!