Independent: Since the birth of agriculture thousands of years ago, humans have cut down the world's forests to grow food and expand their population. But now experts believe the end of our "war on trees" is in sight amid what some are calling a new "green revolution" finally breaking the causal link between growing numbers of people and falling numbers of trees. At a United Nations meeting later this month, countries are expected to pledge to restore between 10 and 15 million hectares of woodland and to...