Hi there, just found this site on and from stumbleupon.com, they plant a tree for every stumble they get. So if you stumble them, they will plant a tree. It's only one click for most of us, as I guess most of us enjoy the easy traffic from stumbleupon , so no sign up or so. The link for that is http://www.stumbleupon.com/earthday/ I think it is a great way to help, as long as they will keep their promise.
It is heartening to note that planting a tree is just a click away. I have contributed my part in greening the earth by giving it thumbs up
I have planted many trees. Not through clicks but by my own hands. It's great, when the trees you plant bear fruit. You can eat them, unlike these clicktrees.
Just stumbled it! It's nice to know you can give a big help with little things like this. One tree from me, I just hope they keep their word.