China's great green wall grows in climate fight

China is speeding ahead with its massive tree-planting project to combat climate change - but questions still remain over the great green wall's effectivenesso In pictures: China's Great Green Wall in Heilongjiango China's Great Green Wall under threat from insatiable demand for woodDubbed "The Great Green Wall," a human-made ecological barrier designed to stop rapidly encroaching deserts and combat climate change is coming up across China. By 2050, the artificial forest is to stretch 400 million hectares - covering more than 42 percent of China's landmass.China already has the largest human-made forest in the world, covering more than 500,000 square kilometres, and the Communist Party this year announced it had reached its stated goal of 20 percent forest cover by 2010. The government envisions a line of trees stretching 4,480 km from Xinjiang province in the far west to Heilongjiang province in the east. Continue reading...