According to Factocoexist.com:
Even though millions of acres of rainforest have disappeared around the world over the last decade, there are now more trees and other vegetation on the planet than there were in 2003. One big part of the reason: China's "Great Green Wall," a massive project to line the edge of the Gobi Desert in trees.
Over the last few decades, more than 66 billion trees have been planted in northern China. By 2050, the project will stretch along 2,800 miles. In theory, it's holding back the desert, though some critics say that plan might not actually work. But the trees are sucking up carbon, and without them, climate change would likely be moving just a little bit faster.
Is it true that China has managed to plant 66 billion new trees since 2003?