The worldwide campaign - Plant for the Planet: Billion Tree Campaign launched by the UNEP and the World Agroforestry Centre raised its target from 1 billion to 7 billion trees earlier this year after thousands of people in 166 countries joined the initiative.

The campaign encourages communities, businesses, social organizations and governments to fight climate change through reforestation. "Sealing the deal" at the UN Climate Change Conference this December is also a campaign goal.

Trees absorb carbon dioxide, improve soil fertility and are important for water quality. Africa is the leading region with over half of all tree plantings. Ethiopia has planted 700 million trees, Turkey 400 million, Mexico 250 million and Kenya 100 million trees.