Based in New Zealand, the project began in March this year and so far has gained pledges from around 450 people based all around the world. In the first month, 15,000 trees were pledged - that's now gone past 120,000. Some people have paid for trees to be planted in forest restoration projects in Madagascar, Haiti, Ethiopia, and Nepal. Others have simply bought and planted a tree themselves and sent a copy of the receipt to the project.