15 billion trees 15 billion trees are cut down globally each year humans cutting down Time magazine article in Time 15 billion trees are cut down 15 billion trees are cut down globally each year na naszej planecie może rosnąć nawet 3 biliony drzew 15 billion trees Time article in Time good news כ- 15 מיליארד עצים נכרתים מדי שנה 15 billion trees 15 billion trees Time How Many Trees We Cut Down Time Magazine has reported article in Time 15 billion trees a year article in Time