It's the smallest thing but possibly the grandest gesture you can do today... Plant a tree seed. It can be a pip from an apple, an acorn from an oak or a winged nut from a maple - you can even go crazy and buy a whole packet of tree seeds from your local garden centre if you want. It doesn't really matter what tree seed you plant, so long as you plant it. And the best seeds - those with the greatest chance of growing large and living long - are seeds from trees that grow naturally where you live. But where do you plant it? On the side of the side of the street, in your garden, in the park, by a lay-by, on the side of a field or next to a wood... anywhere where there's space and light*. Then all you have to do is bend down, push your finger into the soil about to about 2cm (1 inch) depth - or use a pen - and pop that seed in. Then stand on the hole to close it over and tuck it in. That's it. That's all you have to do. You've taken a step, an action, that helps our only planet - the planet we depend on and cling to - breathe a little easier (quite literally). It may be a simple act. It may have been easy to carry out. But given half a chance that seed will grow and grow and mean more and more as your life goes on. Your one single action gains significance as it grows, as you grow. How easy was that? How good do you feel? And if it does make you feel good, go do it again! And again. Whenever you're feeling blue or a little down, or even just for the sake of it, go do a bit of planet saving by popping a seed in a hole the next time you're out and about. It's not the only seed you just planted You just planted one in your own mind. The idea, the thought, perhaps the hope that you can do something to save this planet.